Rebecca drives 50 miles at 20mph and 70 miles in 2 hours. Find her average rate.

A blue car and a red car start in the same location but proceed in opposite directions. The red car travels at 62mph and the blue car travels 48 mph. After how long will they be 2400 miles apart?

Two cars start at the same point driving in opposite directions. The slower car travels 50mph and stops 30 minutes before the faster car. The faster car travels 65 mph and stops once the two cars are 665 miles apart. How long after they start driving are the cars 665 miles apart?

If an object travels at five feet per second, how many feet does it travel in one hour?

Samuel randomly must guess a secret code. Codes contain 4 letters that can be reused. What is the probability that Samuel guesses the correct secret code if he has only one guess?

A secret code contains 3 digits followed by 2 letters. If digits cannot be reused but letters can be reused, how many codes can be formed?

A secret code contains 5 digits. If digits can be reused, how many codes could be made?

The proportion of students who receive an A is about 15%. In a group of 180 students what is the mean number of As? If you select 4 students what is the probability they all do not have As?

A license plate has 4 letters and then 2 numbers. Letters cannot be repeated but numbers can be repeated. Find the probability that in a randomly selected license plate the word MATH appears.

Dovid takes an exam that he did not study for. The exam has 7 multiple choice questions. The first 5 are T/F. The last 2 have 4 options each. Dovid guesses on every question. Find the probability that he answers all questions correctly.