We can solve this by converting each number into a decimal.
Zac: 1/5 = 1÷5 = 0.20
Alyssa: 33% = 33/100 = 33÷100= 0.33
Chloe: 0.30
Nicolas: 0.17
now we can just compare the numbers.
0.17 is the smallest number, so Nicolas painted the least amount
since there is only 1 answer that starts with Nicholas as the first name, we know that this is our answer
Nicholas, Zac, Chloe, Alyssa
we can check by seeing that 0.20 is the second smallest, 0.30 is the third smallest, and 0.33 is the biggest
hope this helps