Write an algebraic expression for each situation.
a. 7 more than a number
b. Twice a number

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

Which of the following tables represents exponential functions?

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74