What is 5.27 × 1021 expressed in standard notation?

Fine the area of the kite. a. 90 sq. units b. 9 sq. units c. 180 sq. units d. 45 sq. units

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.