Find the vertex, focus, directrix, and focal width of the parabola.

x2 = 20y

A person has 22 coins, all nickels and dimes, worth one dollar and 40 cents. If n is the number of nickels and d is the number of dimes, which system of equations could represent this problem? n+d=1.40 0.05n+0.1d=22 n+d=22 n+d=1.40 n+d=22 0.05n+0.

Find two consecutive whole numbers that 77 lies between.

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 16 miles per hour slower than the westbound train.

Adam had $25 to spend on Six raffle tickets after buying them he had $13 how much did each raffle ticket cost?

You are required to take five courses, one each in humanities, sociology, science, math, and music. you have a choice of 2 humanities courses, 2 sociology courses, 6 science courses, 6 math courses, and 8 music courses.

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.