12) - 7x+y=-19

-2x+3y=-19

David is starting a collection of baseball cards. He currently has 16 cards in his collection. He hopes to buy 5 more each month. Write and solve an inequality that can be used to find the least number of weeks it will take him to collect 50 cards.

You are designing a container in the shape of a cylinder. The radius is 5 inches. You want the container to hold at least 725π cubic inches. What is the least possible height of the container?

Sam work three hours each day for eight days. He went to the mall seven of those days. How many hours did he work in total.

Find the ratio of book price to number of pages for each ordered pair. Round your answer to the nearest hundredth.

Solve the equation - 6+3*=9

A. 12 and 7 lowest common multiple

What are two forms of expanded notation 0.58 using fractions

Find the value of a) 8^1/3 b) 8^2/3 c) 16^3/4

What is the d value in the following arithmetic sequence? -7, - 2, 3, 8, ...

What is the value of the discriminant for the quadratic equation 0=x + 2 x^2?