I have four times as much money as does my brother. Our combined total is d dollar. How much does each of us have?

Solve the system of equations. 3x + 4y = - 36 y = 2x - 9 (-9, 0) (0, - 9) {}

Respuesta de x (x+3) = 5x+3

Ruiz needs to buy a countertop for a kitchen. He calculated the area to be 16 square feet. The actual area is 15.4 square feet. What is Ruiz's percentage error? (How do you solve this?)

A=8, b=15, c =. Whats c

Expended form 1.87268

Rick spent $22.50 to purchase 9 toy robots. What is the unit rate for each toy robot purchased?

Which of the following is NOT true about an explanatory variable? a) it is used to explain changes in values of another variable b) it is used to predict changes in values of another variable c) it is plotted along the x-axis d) it is a dependent

Factor the four-term polynomial. pq - 2r + pr - 2q A. (p - 2) (q + r) B. (p - r) (q + 2) C. (p + 2) (q - r)

Simplify the expression (2x - 9) (x + 6).

E. Colby Richards is paid a salary of $125 a week and a 3% commission on all sales he makes above $2,000 for the week. What total earnings did he have for a week in which his sales were $2.890?