Your purchase of CDs and DVDs has a total of 7 items. CDs cost9 each and DVDs cost 15 each. The total purchase costs 87 write and solve a system of equations to find x of CDs and y or DVDs that you purchased.

You mix soda water, fruit punch concentrate, and ginger ale in the ratio of 1:2:5 to make fruit punch how many pints of each ingredient should you use to mkae 4 gallons of fruit punch

Find the value of cot Θ if Θ is in standard position has a measure of 180°

How many times larger is 3.4 * 10-1 than 3.4 * 10-5?

A jet plane traveling at a constant speed goes 1200 mi with the wind, then turns around and travels for 1000 mi against the wind. If the speed of the wind is a constant 50 mph, and the total flight took 4 hours, find the speed of the plane.

Describe how you would find the sum of 24, 36, and 13

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.