Plz asap hiep's yard is in the shape of a trapezoid. the lengths of the parallel sides of the trapezoid are 15 ft and 21 ft. the height of the trapezoid is 8 ft. what is the area of hiep's yard? enter your answer in the box.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

For what value of (y) is 3^3/3^y =1/9