Answer:
-4
Step-by-step explanation:
- - - - - - - -
+ + + +
4 negatives cancel out and leave you with -4
Answer:
507
Step-by-step explanation:
As they said, I will be using 3 as pi.
(pi)
(radius squared)
Without annotations: 

; 


Answer:
7 times (*) 8
Step-by-step explanation:
Product in this case means multiplication
17.966666 I’m pretty sure lol