Miss holman gave a 90-cent tip to a waitress for serving a meal costing $6.00. what percent of the bill was her tip?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)