Is16 over 81 a irrational number

Solve this equation. 3.5 (2.25 + x) = 14

There are 9 yellow and 4 purple balls in a bag. If you randomly choose balls one at a time, with replacement, what is the probability of choosing 1 yellow ball and then 2 purple balls? 165/5210 24/1329 144/2197 28/1335

Your cell phone plan costs $44.99 per month. You also pay 20% in taxes and fees. What is your bill after taxes and fees?

Insurance Underwriters have established that the probability of city experiencing disasters in the next five years is 0.3 for a Tornado, 0.4 for Hurricane, and 0.1 for both Tornado and Hurricane.

Mei can type 6 words a minute. She has to write a letter to the mayor for a school project and she has already written the first 20 words. Mei has to type for 18 minutes to finish her letter.

Deanna estimated the product of 6.45 and 10.2. How does the estimate compare to the exact product?

The Lewis family went out to an expensive restaurant for dinner. The bill was $108.00. Mr. Lewis wanted to leave a 15% tip. How much did he pay in all, including the tip?

Joey wants to build a rectangular garden. He plans to use a side of a river for one side of the garden, he will not place fencing along this side of the garden. He has 92 yards of fencing material. What is the maximum area that will be enclosed?

Mason used 6 quarts of milk to make chocolate ice cream and 4 pints of milk to make peach ice cream. How many cups of milk did mason use?

Jaime is at a library that is 5 miles from her house. Her brother, Max, is at a rec center that is 4.5 miles from the house. The library and rec center both close at 6:00 p. m.