Isaiah need to visit the doctor. the cost of the appointment without insurance is $200. isaiah has an insurance plan throw his employer with a $50 monthly premium and a $20 copay. how much will isaiah have to pay his doctor?

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.