Please please pls help me with this it’s a test i do not wanna get it wrong and please no links tysm i will give u thanks and brainliest if u help

explanation was in pic

the answer is "42"

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

i ran through it by the other answer is wrong

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.