20. In a week Karky ran 9.3 miles and Tricia

ran 4.4 miles. Use mental math to

find how much farther Karry ran than

Tricia. Explain how you determined

the difference.

Issac ate 1 sl2ice of pie. Lucis ate 2 slices. If there were 9 slices remaining and all the slices were the same size, what fraction of the pie was eaten?

It takes an average of 22 weeks for someone over 55 to find a new job, compared with 16 weeks for younger workers. assume the probability distributions are normal and that the standard deviation is 2 weeks for both distributions. a.

It takes Susan 3 hours to fix 2 broken cars and it takes Joseph 4 hours to fix 3 broken cars. If they work together how long will it take them to fix 17 broken cars?

Wayne raked 30 bags of leaves in 3 hours. if he raked the same number of bags each hour, how many bags of leaves did he rake in one hour?

Larry produced exactly 12 clown wigs in an 8 hour day, for 3 days. Which pattern shows how many clown wigs were made in 5 weeks?

A group of seven students were asked how much tv do you watch a day Here are their response 12, 5, 5, 4, 10, 15, 16 Find the mean number of hours for these students. If necessary, round your answer to the nearest tenth.

Determine whether the given description corresponds to an observational study or experiment In a study of 418 students with a particular disease, the subjects were monitored with an EEG while asleep Does the given description correspond to an

Ashley is preparing for a horse riding competition. She has trained her horse for 4 hours and has completed 152 rounds. At what rate has Ashley ridden her horse in rounds per hour

3 (4y+5) using distributive property

Combine like terms to create an equivalent expression. Make sure to simplify coefficients and constants as well. 6 (1/2w - 3/4)