What is the best estimate for 83.74 2.93?

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

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2