Answer:
B. (2 + 5).
Step-by-step explanation:
18 + 45 = 63
The prime factors of 63 = 3*3*7
So 63 is a multiple of 7.
The answer is (2 + 5) (=7).
A. 314 sq cm
Explanation: pi•r^2
3.14 x 10^2
3.14 x 100 =314
Complete the Square:
Plug your numbers in this function
You get this
That equals 
1.1:00
2.2:30
3.4:45
4.3:15
5.11:45
6.6:15
7.6:00
8.2:30
9.6:45
10.6:55
11.4:45
12.10:15
Question number 2
1.7:30
2.10:30
3.3:30
4.5:30
5.9:30
6.12:30