What is the best way to control expenses?

putting all purchases on a credit card

setting and sticking to a budget

buying things that you really like

not buying items on sale

Can (2,3 and square root 10) be sides ona right triangle?

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Find the roots of the equation below. x^2 - 6 + 9 = 0