Use the linear combination method to solve this system of equations. What is the value of x?

-2.4x-3.6y=1.2

2.4x+1.2y=1.2

-1

0

1

-4.8

Round 4,267 to the nearest hundred

Solve this problem using estimation. The Cimarron Middle School orchestra sold $8720.00 worth of candy bars in 28 days. About how much did they make each day?

How to solve y=8/x^2 and is it a linear function or non linear equation?

Jenna has 8 pairs of jeans. Three of them are blue. What percentage of her jeans is blue?

Angie has 12 feet of string. She will cut the string into equal legths of 5 inches each. How much string will be left after she cuts as many of these lengths as possible?

Katya is 15 years old, which is 5/6 of her brother's age. How old is her brother?

Complete the square so that the left side of x2 + 8x - 3 = 0 becomes a binomial squared.

The numerators of any rational roots of a polynomial will be factors of the what?

What is 12-9*3*4+3 in three different ways

What is the combined land area of the countries A and B is 154,973 square kilometers. Country A is larger by 573 square kilometers. Determine the land area of each country