Answer:
10
Step-by-step explanation:
given

we first need to simplify the expression before we find it's value when s=-3
positive times negative=negative
so the equation becomes

substituting s=-3 into the equation.

=

=the negatives cancel out leaving

Answer:
I not sure this 76.5
Step-by-step explanation:
9cmx17cm=156/2=76.5
Then 76.5/2= 39
I hope this helpful for you.... Sorry....
Answer:
8.34/1
Step-by-step explanation:
-12ab+7a power of 2 +a 11
Answer:
1
Step-by-step explanation:
4+(-5*-1)-8
4+5-8
9-8
pemdas