To get a b in math, alexandria pappas must average 80 on five tests. scores on the first four tests were 8383, 7373, 8383, and 7777. what is the lowest score that she can get on the last test and still get a b?

The average of a set of numbers is the sum of those numbers, divided by how many they are.

So, if we call the fifth score , our dataset is

And their average is

We want this quantity to be at least 80, so we ask

So, pappas must score at least 80.

if i put something wrong your not gonna like it so rather not say nothing.

is there more to this question?