David is trying to figure out how tall a tree is, but he only has a 12 foot tape measure. He used it to measure 12 feet from the tree. Then he looked up at the top of the tree, which he determined to be 70 degrees from parallel to the ground. David is 5 feet tall. How tall is the tree?

On the april 3 billing date, michaelle chappell had a balance due of $ 1495.39 on her credit card. from april 3 through may 2, michaelle charged an additional $ 305.34 and made a payment of $ 800.a) find the finance charge on may 3, using the previous balance method. assume that the interest rate is 1.8 % per month.b) find the new balance on may 3.

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r