Hi Im giving brainlest whoever answer this correctly

Step-by-step explanation:

1.

36

2×18

2×9

3×3 therefore prime factorization is 2²×3²

2.

42

2×21

3×7 therefore prime factorization is 2×3×7

3.

48

3×16

2×8

2×4

2×2 therefore prime factorization is 2⁴×3

4.

27

3×9

3×9 therefore prime factorization is 3³

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong