Solve this system of equations: 2x - y = 7 5x + y = 21

Question 1 Not yet graded / 1 pts 2 cards are drawn from a standard, 52-card deck. What's the probability that the first card is a 7, and the second card is an ace?

Solve the system of equations. x + 3y = - 1 2x + 2y = 6 (-4, 1) (2, - 1) (4, - 1) (5, - 2)

Write a fraction that is equivalent to 0.997

If 1/8in is 1 foot. What is 3/4in?

If the outside temperature ranges from - 5 degrees c to 40 degrees c, find the range in degrees fahrenheit.

What is the sum of x + y when x = - 2.7 and y = 5.2? A. -7.9 B. -2.5 C. 2.5 D. 7.9

Which graph shows a negative correlation? 10Ty 9+ 8+ CON + 1 2 + 3 + 4 + 5 + 6 + 7 8 9 000

Twice the difference of a number and seven

Dec 14, 2015 - You and a friend each have a collection of tokens. Initially for every 8 tokens you had, your friend had three. After you give half of your tokens to your. friend

The population of a city is currently 1500. It is expected to triple every - years. Find the population after 30 years.