Answer:
a. 6 and 7
b. 8 and 9
Explanation:
Knowing that the first 10 perfect squares are: 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100.
a. 38 is between 36 and 49, and the square roots of those numbers are 6 and 7, respectively.
b. 70 is between 64 and 81, and the square roots of those numbers are 8 and 9, respectively.