1. complete the comparison: 3+ 7 > ?
a. 10-2
b.9 + 4
c. 7+3
d. 8 + 2

The correct answer is A. 10 - 2

Step-by-step explanation:

1. Let's make all the comparisons for the four alternatives:

A.  3 + 7 > 10 - 2 ⇒ 10 > 8, the comparison is correct because 10 is bigger than 8.

B.  3 + 7 > 9 + 4 ⇒ 10 > 13, the comparison is not correct because 10 is less than 13.

C.  3 + 7 > 7 + 3 ⇒ 10 > 10, the comparison is not correct because 10 is equal to 10.

D.  3 + 7 > 8 + 2 ⇒ 10 > 10, the comparison is not correct because 10 is equal to 10.

The only correct comparison is A. 10 - 2.