Question

answer this question as fast u can​

Answer 1

Answer:

-11

Step-by-step explanation:

y^2=100

y=√100

y=+-10

putting values in equation a and b

For a>0 put y=10

a=10-7

a=3

and y<0 put y=-10

b=-10-4

b=-14

now a+b=3+(-14)

a+b=-11