Solve the system by elimination.

-x-18y=-3

7x-9y=21

on a final exam Alex answered 21 out of 25 questions correctly. he needs to score at least 80% to receive a b in the couse

A piece of equipment moves 16.5 yards in 12 minutes. how many feet does it move per minute? round the answer to three decimal places

A Chinese restaurant uses about 15 exponent 2 appearance of chopsticks each day the manager wants to order a 30-day supply of chopsticks chopsticks come in boxes of 750. How many boxes should the manager order

5 6/7 divided by 3 1/2

For ever bag of trail mix the local scout guide troop sells, the earn 0.45 write an expression to represent this situation

How to find angles in a triangle

In m + 8 the variable m can have any value

A xar travels 273 kilometers in 4 hours (with a constant speed). How much time will it take traveling 117 kilometers?

Maria spent $12.50 at the post office. She bought three times as many $0.41 stamps as $0.02 stamps. How many of each did she buy?

How many different triangles can be constructed with three angles, each measuring 60° A none B only one C more than one