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what is the most used liquidity ratio that can be used to measure the proximity of cash position of a business


When you know the nature and effect of Covid 19 in south africa on output,level of employment and inflation how policy makers can express or. Respond to Covid 19?

An electric power plant uses solid waste for fuel in the production of electricity. The cost Y in dollars per hour to produce electricity is Y = 12 + 0.3X + 0.27X2, where X is in megawatts. Revenue in dollars per hour from the sale of electricity is 15X−0.2X2. Find the value of X that gives maximum profit


Suppose that your demand schedule for DVDs
is as follows:
Quantity Demanded Quantity Demanded
Price (income = $10,000) (income = $12,000)
$ 8 40 DVDs 50 DVDs
10 32 45
12 24 30
14 16 20
16 8 12
a. Use the midpoint method to calculate your
price elasticity of demand as the price of
DVDs increases from $8 to $10 if (i) your
income is $10,000 and (ii) your income is
$12,000.
b. Calculate your income elasticity of demand
as your income increases from $10,000 to
$12,000 if (i) the price is $12 and (ii) the price
is $16.

Give U=XY-2Y and Px=4 ,Py=2 want to minimize budget that subject to is U=288

1).write out the Lagrangian function

2.Use First order condition to find X and Y

3.Test for the second order condition for minimum satisfied.


Following table shows demand of product at different prices.
Price (Rs.) Demand (Units)
1000 5000
900 6000
825 6800
700 7500
550 8500
a. Draw the demand curve for the above table.
b. If the store decided to increase the price of its desktop computers from
$825 to $900, the stores sales will fall by how many computers?
c. Find out the elasticity at each demand point.
d. Is the price elasticity of demand elastic, unit elastic, or inelastic?
e. Will the store’s total revenue increase, decrease, or remain unchanged?
Assume that your are from any one of the following family. How can you utilize the limited resources to fulfill your needs
(a) family farm (b) petty shopper
(c) flower vendor
Assume that you are from any one the following family, how can you utilise the limited resources to fulfilling your needs
Activity -2: The sales of Departmental store approximanted by a straight lime. The sales were Rs. 4.50,000

in January and Rs. 7,50,000 is May. Determine the equation of strught line representra

the Increse in sale. Assuming that this lineas

trend continue, estimate the sale in November?
You are required to review trends international trade and economic growth in South africa.
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