Solve the following system of equations by substitution and select the correct answer below:

2x - 4y = 24

4x - 12y = 36

x = 18, y = 3

x = 18, y = - 3

x = - 18, y = 3

x = - 18, y = - 3

If 60 Markus are 40% what is full marks

Carl has $75.00 and Belinda took half what dose it equal

Recall that the scores in Mr. Young's class had a mean of 78 and a standard deviation of 8. About what percent of students scored between 78% and 94%? A. 47.5% B. 34% C. 13.5% D. 68%

Thirty three million twenty four thousand two hundred twelve in standard form

The results of a survey of 140 randomly selected students are as follows: 70 students have a cell phone plan with company X. 42 students have a cell phone plan with company Y. 28 students do not have a cell phone.

A dog weighs 2 pounds more than a cat. 3 cats and 4 dogs together weigh 43 pounds. How much does a dog weigh? How much does a cat weigh?

Is y equals x to the third power + x equals - 3 then what does y equal

What is f and x in f (x) = 7

18 * 5 * 10 * 9 * 7

Home Depot wants to buy a new line of fertilizers. Manufacturer A offers a 21/13 chain discount. Manufacturer B offers a 26/8 chain discount. Both manufacturers have the same list price. What manufacturer should Home Depot buy from, show why?