How is get the answer to this

X2-8x-20

Which letter has rotational symmetry? Z W F P

Line plots display individual data? True or false?

Present Value Hoew much shuold be deposited in an account paying 7.2% interest compounded monthly in order to have a balance of $8000 after 3 years?

Candice paid $2000 for her whole life Insurance policy this year. A term insurance policy with the same coverage would cost her about $700 a year.

Explain two ways of finding the total cost of 4 packages of hot dogs and buns using the expression 3.99p + 2.19p?

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.