Which is a quadratic function?

f (x) = 2x + x + 3

f (x) = 0x2 - 4x + 7

f (x) = 5x2 - 4x + 5

f (x) = 3. x3 + 2x + 2

A babysitter makes 7.50 per hour

C/2.1 + 1/5 = 1/4 find c

Jane moved from a house with 69 square feet of closet space to an apartment with 40.02 square feet of closet space. What is the percentage decrease of Jane's closet space?

How many 1/4 teaspoon does are in 7/8 teaspoon of medicine

suppose ACT Mathematics scores are normally distributed with a mean of 21.3 and a standard deviation of 5.3. A university plans to send letters of recognition to students whose scores are in the top 11%.

What are some examples of the golden ratio involving art?

Ashton left his house and ran 4 miles east and 3 miles north he took the diagonal path back home if he burned 105 calories every mile that he ran how many total calories did he burn on this run

Solve 3x-5y=13 4x+8y=-9

Lewis needs 1/8 quart of paint to cover 10 square yards. How many square yards can he paint with 4 quarts of paint?

It is recommended that you have 8 servings of water per day. A serving of water is about 237 mL. If Carmelo drank 7 servings, about how many liters of water did he drink?