Question on the image​

15

Step-by-step explanation:

Step-by-step explanation:

For question a: odd + even will always equal odd. so we can use 15 + 40.

For question b: 15 itself is a multiple of b.

For question c: 15 is a factor of 60. There are other answers in there.

For question d: 4^3 = 64, so 64 is one of them.

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.