Is the expression 5x² (2/5-x) a trinomial?

What is the value of y in the solution to the system of equations? 1/3 x + 1/4y = 1 2x - 3y = - 30

7w+w-15=17 What is w equal to?

What is the recursive formula for the sequence 3, 12, 48, 192, 768 ... ?

In a recreation park a childrens slide is 27 feet long and makes an angle of 39 degrees with the ground. Its top is reached by a ladder 18 feet long. what is the angle of inclination of the ladder?

If you rode a bicycle at 12 miles an hour how long will it take you to write 42 miles

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.