At middleton middle school, marianne musf score and average of at least 80 points of 4 tests before she can apply for the scholarship. if she scored 79 81 and 77 for the first three tests, what must she score on her last test?

the answer is 83, using the equation of 320-79-81-77=x and X is equal to 83

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.