When Jacoby was born, his grandparents put $2,500 into a savings account for college. It earned 11% interest per year. Find the total after 18 years. Remember to find the simple interest first; then add that to the original amount. please help

step-by-step explanation:

compare

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

what was there favorite food