Simplify 5 (a - b) + 6 (a + b) - 7 (a - 2b)

4a - 13b

4a + 15b

19ab

What is the ratio of 72 to 126

What is the value of the expression (7 - 2) 2?

Multiply fractions and whole numbers 4/5 * 6 =

How to divide 19 divided by 789 step by step?

How do you connect intercepts and zeros

Suppose that state's record high temperature of 102 was set in 1930, and the record low of -14was set in 1966. What is the range of these temperature extremes?

Max makes a scale drawing of distance between salt lake city and Arizona. The distance between salt lake city and Arizona is 21 cm. If each 7 cm on the scale drawing equals 250 kilometers, how far apart are the salt lake city and Arizona.

What is 2 square roots between 9and 10?

An office supply store sells pencils individually or by the case. Pencils purchased individually cost $0.97 each. One case of forty pencils costs $37.20. You have an annual budget of $95.00 for pencils. Without exceeding the annual budget of $95.

Suppose you were a carpenter. Give the lenght, width, and height of a storage cabinet with a volume of 72 cubic feet that you would build. Explain your choice.