Peter has a summer job mowing lawns. He charges a weekly rate of $3 for gas and then $20 per hour per family. Last week, Peter earned $53 mowing the Smith's lawn. How many hours did Peter spend mowing the lawn?

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.