Which of the following equations is in proper standard form?

-5x + 3y = 15

½x + 4y = 8

y = 3x + 4

2x - 3y = 6

Mrs. Robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. Mr. Chang bought the same novel at a different bookstore for 10% off its regular price of $25. Which person received the better discount. Explain

Is 24 a perfect square

If a football is kicked in the air from the ground, and it takes 2 seconds to reach a height of 94 feet, what was the initial vertical velocity of the football?

A drawer is filled with 9black shirts, 6white shirts, and 5gray shirts. One shirt is chosen at random from the drawer. Find the probability that it is not a gray shirt.

How does a hawaiian baritone laugh? i cant figure it out!

How to find the inverse of (7x-1) / (2x+2) ?

What is the total surface area of the square pyramid below? 14 cm 10 cm 10 cm Answers: 100 cm 200 cm 250 cm

Benjamin paints and sells his art work at art shows. He charges $56.25 for a large painting. He charges $25.80 for a small painting. Last month he sold six large paintings and three small paintings. How much money did he make in all?

A mixture of 12 ounces of vinegar and oil is 40%n vinegar by weight. How many ounces of oil must be added to the mixtue to produce a new mixture that is only 25% vinegar?

An airplane ticket has an area of 80 square centimeters. Its perimeter is 36 centimeters. What are the dimensions of the ticket?