How do I simplify - 5 (a-9)

What is the surface area of a die in which each edge has a length of 15 mm?

The dimensions of a rectangle can be given by x+7 and x+2. If the area of the area of the rectangle is 66 square inches, what are the dimensions of the rectangle?

Tickets to a movie cost $8 each. Write an equation for the function that gives the total cost y in dollars for an order of x tickets

Find the length of AB if A is located at (-5,0) and B is located at (1,0)

The depth of the submarine is 50 ft below sea level when it starts to descend at a rate of 10.5 ft/s. It dives at that rate for 5 s. What are the constraints on the x - and y-values?

The number of frogs (f) in the pond is proportional to the number of salamanders (s) placed in the pond. Suppose there are 10 frogs for each salamander.

Luke mowed a lawn today to earn some extra money. He spent $2.10 on fuel and $4.45 on lunch. He charged $13.50 to mow the lawn. What was his profit for mowing the lawn?

Julia exercises at the gym. For every 3 minutes she spends running, she spends 5 minutes lifting weights Which of the following could be how Julia spends time at the gym? A Run for 10 minutes and lift weights for 12 minutes.

What is 21/28 simplified

What's is the number of 15,409