Solve the system using elimination: 5x-4y=33. 3x-3y=24

The sum of the angles in a triangle is 180. If the largest angle is twice the size of the smallest angle is 1.5 times the size of the smallest then what are the measures of each angle?

Ling has m dolls. Alice has 3 times as many doll's as Long. Betty has 7 fewer doll's than Alice. How many dolls do they have in all. Give your answer in terms of m

What's commission pay?

8 pencils cost 72¢. How many pencils can be bought for 45¢?

What is the arc measure of an arc with length 4.189 cm and radius equal to 3 cm.'?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.