4x-7y=3

x+7y=15

solve using elimination

The sum of two numbers is 31. twice the smaller number is 11 more than the larger number. the positive difference between the numbers is

What are the next three terms of the following sequence? - 2, - 1, - 1/2, - 1/4

If two angles are supplementary an one of them is 30 degrees what is the measurement of the second angle

Trendy Time race carts charges $25 plus $1.50 per lap. Which best describes the relationship between the total cost and the number of laps?

There are 8 more students in a math class than in a history class. If the ratio of the students in the math class to the history class students is 9 : 7, how many students are in math class?

An art teacher has a box of markers. He gives 15 markers to each student. He has 18 students. The teacher has 124 markers left over.

Refer to the Venn diagram that represents the sports students chose to play at South High School last year. Select the correct description of sports that the students in the non-intersecting portion of the tennis region chose. 2_6

Cuanto es 10 elevado a la potencia 12

1.--2.4.-8. What is the sequence?

Several students have a really great business plan and decide to start a graphic T-shirt company. After initial expenses of $280, they will purchase each T-shirt wholesale for $3.99. They will then sell the each shirt for $10.99.