How much is root of five by root of five

If eight out of every thirteen trick-or-treaters that came to your house last Halloween were dressed as knights, what proportion of trick-or-treaters were not dressed as knights?

What is the solution to the system below? X=7 y=-2x+5 A. (7,-9) B. (-9,7) C. (7,9) D. No solution

Ab+y dided by (48+67) if a=19 B=10 y = 19

Write and solve an equation to find the width w of the rectangle. Explain how you know what units to use with the answer

A grocery store sells 6 bottles of water for $4.80 and 18 bottles of water for $22.50. Is the cost proportional to the number sold? Explain

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.