1. use rounding or compatible numbers to estimate each product or quotient
5 x 2 3/5
a. about 10
b. about 10 3/5
c. about 12
d. about 15
2. use rounding or compatible numbers to estimate each product or quotient
25 7/8 (divided by) 2 8/9
a. about 9
b. about 10
c. about 11
d. about 12

A) option c) about 12

B)  option a) about 9      

Step-by-step explanation:

We have to carry out the following calculation and use compatible numbers to evaluate,

A)

Hence, the answer option c) about 12.

B)

Hence, the right answer is option a) about 9

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right