1.jon travels 1/2 mile in 1/4 hour. find the unit rate in miles per hour.

2. the letters in the word "ridiculous" are placed in a bag. if a letter is picked at random, what is the probability that a vowel will be selected? give the answer as a fraction in simplest form.

3. manny has $12000 and is saving for a used car that costs 15000. he is able to save $300.00 per month toward his car. write and solve an inequality for this situation if m represents the number of months that manny must save to buy the car.