Each class period the professor picks 3 students at random from his class of 15 students to present problems at the board. (a.) what is the expected number of times jim (one of the students) will be picked in a week (5 classes)

You get paid $10 an hour. In order to make $210, you need to work 21 hours. If you work the same amount of hours for four days and you work the remaining hours on the fifth day, how many hours do you have to work for each of the four days and how

Is 180 divisilbe by 9

How old am I if 100 increased by 4 times my age is 132?

What is the range of possible sizes for side x? the other two sides are 8.0 and 8.5

18 miles is what percent of 24 miles?

Which of the following has a value of 84? a. 83 b. 512 c. 32 d. 4,096

Joey can type 80 words per minute. How many words can he type in 30 minutes?

The weight of 1000 identical samples of substance is 0.1 pounds. what is the weight of 100 samples

A vitamin C tablet contains 1/40 of a gram of vitamin C. You take 1&1/2 tablets Evry day. How many grams of vitamin C do u take evryday?

How many times does 6x go into 19y