Which table does NOT represent a function? PLEASE HURRY

What is the compound interest in a three-year, $100,000 loan at a 10 percent annual interest rate a) 10.00 b) 21.00 c) 33.10 d) 46.41

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?