If saddy can paint 1 house in 4 days, what sentence is true?

a: andrew can paint 9 houses in 27 days.
b: andrew can paint 8 houses in 30 days.
c: andrew can paint 7 houses in 28 days.
d: andrew can paint 6 houses in 18 days.

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.