Alright. So Ella is earning some money mowing lawns over the summer. We are told for every lawn that she mows, she will get paid $15. Let's write this down to show what we mean.
color(white)(aaaaaaaaaaaa)("1 lawn mowed")/($15 )
Her goal is $600. So let's write what our goal is, or our given, and figure out how many lawns she needs to mow.
color(white)(aaaaaaaa)(cancel$600)/1*("1 lawn mowed")/(cancel$15 ) = "40 lawns mowed"
She will need to mow 40 lawns in order to earn her goal of $600
But if she is earning $15 per lawn, let's hope all the lawns are equal in size because $15 doesn't seem like a lot! Or, at least to me it doesn't.