Question

pls need ans for this ​

Answer 1

Answer:

a) x+7

2+7=9

b) 4x-5

4×2-5

8-5

3

Step-by-step explanation:

PLEASE MARK AS BRAINLIST

Answer 2

Answer:

9, 3, -1, 20

Step-by-step explanation:

X=2

X+7=2+7=9

4X-5=4x2-5=8-5=3

19-5X^2=19-5x2^2=2^2=4=5x4=20=19-20=-1

100-10X^3= 100-10x2^3= 10x8=80=100-80=20