Question

Evaluate 2 a + 4 for each value of a
1.a=0
2.a=2
3.a=5
4.a=8

Answer 1

We have to find the value of expression $(2a+4)$ for some particular values of a :

1). when a=0

$2a+4 = 2*0+4 =0+ 4=4$

2). when a=2

$2a+4 = 2*2+4 = 4+4=8$

3). when a=5

$2a+4 = 2*5+4 =10+ 4=14$

4). when a=8

$2a+4 = 2*8+4 =16+ 4=20$