Dave receives 10% commission on his first $5000 in sales and receives 20% commission on any sales beyond the first $5000. If Dave sells $7000 this month, what will Dave's commission be for the month?

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

The speeders soccer team charged $12 to wash each car at a fundraiser car wash.the team collected a total of $672 by the end of the day.how many cars did the deal wash?

Let f(x) = x + 2 and g(x) = x2 + 4. find f(g(f(