Answer:
8.

11.

Step-by-step explanation:
Area = 
r = d/2
= 3.14
8.
r = 10/2
r = 5 in
Area = 
Area =

10.
r = 6/2
r = 3 m
Area =
Area =

Hope it helps! (:
Answer:
7) D
8) A
9) A
10) D
11) C
12) B
Step-by-step explanation:
6 6/15 because if you multiply the mixed number first then multiply the fraction
1 x 5 = 5 + 3 = 8
tell me if it’s not the answer your looking for
Answer: 2.1
Step-by-step explanation:
3.4 - 2.8d + 2.8d - 1.3
add the variables together and the coefficients or add the d's with d's and 3.4 with 1.3
= 3.4 - 1.3 = 2.1
=2.8d - 2.8d = 0
The final answer would be 2.1