remember, you can do anything to an equation as long as you do it to both sides
try and isolate the variable you are solving for and divide it by its constant
p=2l+2w
minus 2l from both sides
p-2l=2w
divide both sides by 2
which can also be simplified to
The answer is d because 42/45 as a percentage is 93
He is saving 16%
You can use a ratio to find things like this because it’s so simple
261_209=u
-52=u
hope it helps you!!!!!!!!