4 A recycling firm collects aluminium cans from a number of sites. It crushes them and then sells the aluminium back to a manufacturer.
The profit from processing t tonnes of cans each week is , where
.
By completing the square, find the greatest profit the firm can make each week, and
how many tonnes of cans it has to collect and crush each week to achieve this profit.

look at photo

the argument of alfred t. mahan, henry cabot lodge, and albert j. beveridge was the economically and mass production the the americans could not consume themselves. this led expansion to sell to other foreign nations for profits.

step-by-step explanation:

this is my explanation

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75

the answer is 9 because the question is telling how much it be together.