Calculate the value of X^3 + Y^2 of x=4 and y=6

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

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?