mark ate 16 cookies. this is 80% of the cookies in the bag. how many cookies were originally in the bag?

Which calculations could be used to solve this problem? The toy factory makes 88 beach balls in a day. Each day 7 of the beach balls are rejected as they have holes in them.

Pete painted 4/8of a rectangle green. Me painted 1/8of the same rectangle blue. Pete painted the rest of the rectangle red. What fraction of the rectangle did Pete paint red? Draw a rectangle to model the amount of each color Pete used.

A student had a $20,000 loan at 4% for 10 years. The first payment was $202.49. How much interest and how much principal is paid in the first payment?

14 + 2y - 3 + 7x - 12y + 3x - 20=

If a quadrilateral has exactly one pair of sides parallel it must be a

Edin has £300 in his savings account. His bank offers him a fixed 5% simple interest rate per annum, for a period of 3 years. How much interest will he have earnt after 3 years?

He is driving a truck traveling 45 mph and Adriana is riding a train traveling 60 mph. They both cover the same distance, and Jayden travels 2 hours longer than Adriana. How many hours did each person travel?

Explain how using equivalent ratios is like adding fractions with unlike denominators

A van has 6 students and 2 teachers how many vans are needed for a total of 48 students and 16 teachers

Lucas is applying to both Stanford and Cal-poly. The probability that he gets accepted to Stanford is 0.4. The probability that he gets accepted to Cal-Poly is 0.3. The probability that he is accepted to both schools is 0.15.