You operate the cash register at a diner. a customer gives you a $20 bill to pay for his check, which totals$12.19. how much change should you give back?

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Which graph shows the solution to the system of linear inequalities? y-4t< 4 y

Determine the intercepts of the line that passes through the following points. (15,-3)(15,−3) (20,-5)(20,−5) (25,-7)(25,−7)