A race car has a average speed of 105 miles per hour. How long will it take to cover 140 miles?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.