Using substitution how do you solve - 4x+y=6 - 5x-y=21

What number am I? I am a number between 501 and 599. I am not an even number. I am divisible by 5 and 9.

Create a pattern for the rule a x + 2

Given cos theta=24/25 and is located in Q3, Evaluate the rest of the trigonometric functions:. 1. sin theta=. 2. tan theta=. 3. cot theta =. 4. sec theta =. 5. csc theta=

Is the digit in hundreds place 1/10 the value of the digit in the thousands place 8556

Kenan bought some deli meat to serve his friends who were coming over to his house after soccer practice. He got 2 1/16 pounds of turkey for $4.85 per pound and 1 5/8 pounds of roast beef for $6.75 per pound. How much did the deli meat cost him?

What is the upper quartile of 2,4,5,5,6,8,9

1 over 2 added to 2 over 5

In the figure below, triangle ABC is similar to triangle PQR, as shown below: what is the length side of PQ

One student ate 3/20 of all candies and another 1.2 lb. The second student ate 3/5 of the candies and the remaining 0.3 lb. What weight of candies did they each eat?

A 1/2 gallon of paint covers 1/6 of a wall. How much paint is needed to cover the entire wall? Could u show me how to do this question?