Whats 2x + y = 10 5x - y = 18 in elimination method

What is the surface area of a rectangular prism with a base length of 7 yards a base width of 5 yard and a height of 6 yards?

Alfredo has 100 dollars from his baseball card collection. He gives some to his friends then buys 4 times as much as he had before. How many baseball cards does he have?

The bill for jacobys breakfast at a Nashville restaurant is 9$. He wants to leave a 20% tip. How much should the tip be?

Write 18/24 as a percentage

A metal bar weighs 8.15 ounces. 93%of the bar is silver. how many ounces of silver are in the bar?

Sympilfy 31/-8 ...

What is the missing constant term in the perfect sqaure that starts with x^2 - 4x

A spinner has 5 equal-sized sections with different colors. You spin the spinner 50 times. The results are shown in the table. Find the theoretical and experimental probabilities of spinning blue.

Solve equation 4 (k-6) - (3k + 2) = - 5

Using the GCF you found in Part B, rewrite 72 + 81 as two factors. One factor is the GCF and the other is the sum of two numbers that do not have a common factor. Show your work.