Y=5x2. quadratic equation

Simplify (5x^2 - 3x+3) - (x^2+2x-1).

Sam had some money in his pocket, and he found another $6.50 in his dresser drawer. He then had a total of $19.75. Let p represent the amount of money Sam had in his pocket.

What adds up to - 3 and multiplies to - 54

Decide whether the function is one to one. Y = - (x+3) ^2-8

An elevator has a maximum weight limit of 1.5 tons. Rozell company workers load boxes that weight 150 each into the elevator to transport them to the first floor. What is the greatest number of boxes the elevator can hold.

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.