So if you can do expressions with rational numbers, what is the answer to - ½+-0.5 ?

Mr Taylor brought back 230 Great British Pounds to Australia. The exchange rate was $1.69 to £1. How much did he get in $ AUD?

100 cookies and 20 brownies. split them into equal groups.

The LCM of three numbers is 7920 and their GCD is 12. Two of the numbers are 48 and 264. Using factor notation find the third number if one of its factors is 9.

If the probability of success during a single event of a geometric experiment is 0.03, what is the probability of success by the 11th event? A) 28.5% B) 30.6% C) 34.7% D) 32.7%

Paul, Colin and Brian are waiters. One night the restaurant earns tips totalling £78.40. They share the tips in the ratio 2:5:1. How much more does Colin get over Paul?

Of the 800 seventh grade students and 640 eighth grade students at Knox Middle School, 90 students will be chosen at random to attend an assembly.

A square prism has a height of 14 inches and a base with an area of 20 square inches. A cylinder is inscribed inside the prism. Which statement about the volume of the cylinder, V, is true?

A coffee pot holds 2 3/4 quarts of coffee. How much is this in cups?

A cube has depth of 9cm. what is the volume of the cube

Mary Hernandez had a policy with a $500 deductible which paid 80% of her covered charges less deductible. She had medical expenses of $10,000.00