Write an algebraic expression to represent the verbal expression

eight more than a number

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6