four sisters contributed equally to buy a present for thier father. They receive a 10% discount on the original price of the gift. after the discount was taken each sister paid 13.50. what was the original price of the gift?

The definition of the word acute angle as a biconditional statement

Which information is not necessary to solve this problem? Peter bought 7 pizzas for his party. Each pizza can feed 6 people. There were 40 guests invited to his party. How many people could Peter feed with the pizzas? A. Peter bought 7 pizzas. B.

If a ≠ b and 1x + 1a = 1b, then x =

Employment data at a large company reveal that 55 % of the workers are married, that 20 % are college graduates, and that 1/5 of the college graduates are married.

Nicole has a machine that will produce a number from one through 50 when she pushes a button if she pushes the button, what is ... A. P (multiple of 10) ? B. P (not 100) ? C. P (not a multiple of four) ? D. P (one-digit number) ?

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.