Solve the system of equations below.

2x + 4y = 10

2x + 4y = - 10

A. X = 3, y = 1

B. X = 6, y = - 4

C. No solution

D. Infinitely many solutions

The square of Mark's age 3 years ago is 6 times the age he will be in 9 years. What is his age now?

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Write a percent problem for which the percent is greater than 100 and the part is known. Use the percent equation to solve you problem to find the whole.

Cuanto es un feet en ce centimetros

Karen feeds her cats 2 quarts of canned cat food a day. how many quarts does she feed them a week?

A cone is twice as tall as a cylinder of the same radius. what is the ratio of there volumes?

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A 28-year-old man pays $165 for a one-year life insurance policy with coverage of $140,000. If the probability that he will live through the year is 0.9994, what is his expected value for the insurance policy?