Jan quint earns $11.00 an hour at her job and is entitled to time-and-a-half for overtime, and double time on holidays. last week she worked 40 hours of regular time, 9 hours of overtime, and 12 hours of holiday time. how much did she earn last week?
a. $720.50
b. $612.00
c. $852.50
d. $803.00
explain the answer..

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation:

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