(08.05)
the work of a student to solve a set of equations is shown below:

equation 1: m = 6 + n
equation 2: 2m = 8 + 8n

step 1:
−2(m) =
−2(6 + n)

2m =
8 + 8n

step 2:
−2m =
−12 − 2n

2m =
8 + 8n

step 3:
−12 − 2n =
8 + 8n

step 4:
−20 =
10n

step 5:
n =
−2

in which step did the student first make an error?

step 2
step 3
step 4
step 5

You call the pizza store and find out that eachpizza has 12 slices. you expect 16 people tocome, and you estimate each person will eat 3slices. how many pizzas should you order

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The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.