Four times the difference of a number and nine is - 30?

A triangle has sides with lengths of 35 meters, 84 meters, and 91 meters. Is it a right triangle? Yes or No

Rachel poured 4/5 of a gallon of water into a bucket. Later, she added 3/10 of a gallon more. How much water is in the bucket now?

What is the solution for this problem 3p-1=5 (p-1) - 2 (7-2p)

Four of your friends went out to dinner. The total bill was $97.38. One of your friends has a coupon for 35% off and the group left an 18% tip. If each person paid the same amount how much did each person pay

Luna is building a scale model of the Empire State building. The real Empire State building is 1,250 feet high. If Luna is making the model at a scale of 1 foot to 250 feet, how tall will her model be?

Ben earns $9 per hour and $6 for each delivery he makes. he wants to earn more than $155 in an 8-hour workday. what is the least number of deliveries he must make to reach his goal? how work

Emily bought a video game console and some games for $350. The video game console cost $200. Each game cost $25. How many games did Emily purchase?

Solve for x y=8x y=72

Two prime numbers between 60 and 90

What is the solution of y=5x and y=4x+1