How many ways can eight letters be arranged into groups of five where order matters and the first two letters are already chosen? 100
120
240
720

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay

Solve the system of equations. y=3x-1 and y=-2x+9. show work