34,72,29,25,13,81,56

81-13=68 what concept is this?

Hayley has a lot of stuff in her pencil case. She has 6 coins and 10 other items in her pencil case. What is the probability that a randomly selected item from Hayley's pencil case will be a coin?

Choose the correct answer. you see a used car you wish to buy. the dealer quotes you a price of $9,550. you have a blue book quotation of $8,400 for the same model and year. how much markup on cost is the dealer using? it is %.

The smelliness of cheese (denoted by S) can be defined as a function of the amount of bacteria in the cheese (denoted by B) an the surface area of the cheese (donated by A) using this formula

81.46 rounded to the nearest whole number

Molly has 1 3/8 cups of strawberries she needs 3/8 cups of strawberries to make one batch of muffins how many batches did molly make?

Simplify 4-6+2x-9x-8

Evaluate. 6+5|4-3^2| A. - 19 C. 31 D. 55

Gene McDonald's bank granted him a single-payment loan of $5,000 for 90 days at 9% exact interest. What is the amount of exact interest owed?

How to solve a composite figure

If you are 29 years old, you have been alive for about 920,000,000 seconds. write this number in scientific notation.