Write the following expression using a single exponent. 85 ÷ 8-2 a. 8-7 b. 83 c. 8-10 d. 87

How do you solve a question like this?

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2