What is the solution to this system of equations?

x - 2y = 15

2x + 4y = - 18

A. x = 1, y = - 6

B. x = 1, y = - 7

C. x = 3, y = - 6

E. x = 3, y = - 7

What is the difference? - 2/15 - (-9/15) a.-11/15 b. - 7/15 c. 7/15 d. 11/15

If a man has 5 candy and give away 3 how much leave

Simplify and justify steps 4 (a+2b) = 3 (2a-b) + 6a-7b

The museum gives tours to students in groups of 7. Four fifth grade classes are going to the museum. There are 20 students in each class, but 3 students were absent today. The museum needs to determine the number of your groups.

What fraction equals - 9/16

Ann needs 42 feet of fabric to make a small quilt. How many yards of fabric should she buy. a. 13yards, b. 14yards, c. 21yards, d. 126yards

What is the constant of proportionality in the equation y=5.5x

Kwan wants to place a fence around a circular flower garden in his yard. If the radius of the garden is 4 yards, what is minimum amount of fencing that Kwan needs, to the nearest tenth of a yard A. 8.0 B. 12.6 C. 25.1 D. 50.2

Find the multiplicative inverse of 11/12

With every solid with the same dimension have the same density