Hans brought 3 CDs that were each on the same price. Including sales tax, he paid of total of $52.50. Each CD had a tax of $0.90. What was the price of each CD before tax?

16.6/ cd

Step-by-step explanation:

if the tax was .90 for each CD, you times that by 3 bc there are 3.

.90*3= 2.7

If the total was 52.50, then subtract 2.7 to get the price for the 3 cds without tax.

52.50-2.7= $49.8

Divide 49.8 by 3 because there are 3 cds and you get 16.6, which is the price for one cd before tax

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,