Can someone help meh a = -9 and b= -4

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

i ran through it by the other answer is wrong

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

there would only be 50 odd numbers between 1 and 100 so therefor there would be 50 even so that would only be 50 odd numbers.

b segment jm is correct i think