Which of the following is the rational exponent expression of fifth root of 7 n? . a. 5n7. b. (7n)5. c. 7 times n to the one fifth power. d. quantity of 7n to the one fifth power

Carli has 90 apps on her phone. braylen has half the amount of apps as theiss. if carli has three timesthe amount of apps as theiss,how many apps does braylen have? let b represent the number of braylen's apps and t represent the number of theiss's apps.