What is the difference between - 21 and - 8 on a number line?

Kate jogged 3 3/4 miles on Saturday morning and 2 1/2 miles Saturday evening. How many miles did she jog on Saturday? (5 2/3 OR 6 1/4)

Alicia is in charge of getting tickets for the chemistry club to go to the science museum. Forty students and 4 chaperones plan to go on the field trip, but the club has only saved $372.

Kevin swims 50 meters in 1. 1 minutes on his first day of swimming class. He swims the same distance in 0. 9 minute a week later. The next week, he swims the same distance in 0. 7 minute.

On a given day, machine A has a 10% chance of malfunctioning and machine B has a 7% chance of the same. Given that at least one of the machines malfunctioned today, what is the chance that machine B malfunctioned?

Kal is making 3 batches of cookies. Each batch calls for 3/4 cups of sugar. How much sugar will Kal use for all 3 batches?

What is 7 divided by 6261

Simplify the expression 53 + 3 (5 - 3)

If a circle has circumference 100pi units, what is it's area

If your total is $19.48 and the tax is $9.25 what is the total amount

Find the EXACT value of sin (A-B) if sin A = 15/17, cos A = 8/17, sin B = 3/5, and cos B = 4/5. sin (A-B) =