Answer:
1. 15
2. -2
Step-by-step explanation:
First, since -4 is in parentheses, we want to take it out of parentheses. This might make sense but now it becomes 12 + 7 - 4. If it doesn't make sense, I'm sorry because I don't know how to explain it. Now we add 12 to 7 and we come out with 19. Then we subtract 4 and get 15. We want to do the same for number 2. We take -6.25 out of the parentheses and we have -1.75 - 6.25 + 6. When you subtract a negative something from a negative, we get more negative. So now we have -8 + 6. Which then equals -2. I hope this helps!
Hey there!
Our formula for cylinder area is:
π

h , with r being the radius and h being the height.
When we plug in our values, we get:
A =

A = π(144)(13)
A = 1872π

Therefore, your answer is
B, 1872.Hope this helps!
Answer:
7,020 cm
Step-by-step explanation:
9 cm x 12 cm x 13 cm x 5 cm = 7,020 cm