Pleaseee hellpp Choose the variable expression that matches this phrase.

... the product of the price of 1 cricket, 15 cents, and the number of crickets.

A. 15/c

B. C- 15

C. 15c

D. C+15

Which of these choices show a pair of equivalent expressions?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?