What is the value of y

4y squared-7y=15

Miguel spent 1/8 of his savings on a new video game system. Mila spent 12% of her savings on her DVD, and Manny spent 0.1 of his savings on a skateboard. Who spent the most their savings?

The selling price of an item is $390. It is marked down by 10 %, but this sale price is still marked up from the cost of $270. Find the markup from cost to sale price.

Marcus believes 2 5/8 = 2.58 is he correct? Explain why or why not

What is - 17/20 as a decimal

Which number has a 4 that is one tenth the value of the 4 in 438? A. 472 B. 4,619 C. 249 D. 27.4

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.