Question

Please explain and answer the first one

Answer 1

To find out whether the expressions equal 9, plug the values of x and y into each problem. For example, the first expression would be 4 to the power of 2 + 6×1/3, which would simplify to 16+2 which is 18, not 9. The expressions that do equal 9 are B, D, and E.

Answer 2

e) 3x - 9y
↓ ↓
3x4 9x 1/3 → 9/1 x 1/3 → 9/3= 3
↓
12 - 3 = 9

b and d are correct too