Algebra Answers

I have to find the portion of the distance "x" of hypotenuse, of a right triangle with one leg equal 18, a circle inside the triangle with a radius of 5. There's a letter "C" inside the circle. Also, the teacher said to put the letter "C", down by the leg with the value of 18. I have no other information. The distance "x" is not specified as anything. It's just a portion of the hypotenuse! Help!!!

what is the center of a circle with the following equation? (x-1)^2+(y+2)^2=49

A man puts $10 in the bank for his son on each of his birthdays from the first to the twentieth inclusive. If the money accumulates at 3% compound interest, what is the total value on his son's twenty first birthday?

Supposing a clock takes 7 seconds to strike 7 how long will the same clock take to strike 10?
my younger brother got this at school, shame on me, but can't match the answer. please help

16x^2-y^2+6y-9

Dick is in charge of purchasing office supplies and his budget is $175.00. Paper is $21.99 a box, toner cartridges are 52.90 each and folders are $0.99 each. All the office supplies are 20% off. If Dick needs to buy 3 boxes of paper and 2 toner cartridges . how many folders can he buy?

In a survey of a TriDelt chapter with 50 members, 18 were taking mathematics, 33 were taking English, and 5 were taking both. How many were not taking either of these subjects?

In a survey of a TriDelt chapter with 50 members, 24 were taking mathematics, 30 were taking English, and 9 were taking both. How many were not taking either of these subjects?

Convert the base-ten number to a number in the indicated base
2874 to base five
Write the numeral base
200 six

Determine if the following is a function or not
The set of ordered pairs {(animal, zebra), (bird, parrot), (flower, rose), (tree, elm)} from the set {animal, bird, tree flower}to the set {zebra, parrot, rose elm}