Kate sold one half of her paintings and purchased 7 more. If Kate has 21 paintings now, how many paintings did she have to begin with?

To find the distance between two bicyclists who are moving in opposite directions, you would calculate how far each one has traveled and then subtract the two distances. True or False

T/F The centroid of an object must be located on the object.

Oceanside bike rental shop charges of 12 dollar fixed fee plus 9 dollars an hour for renting a bike. Sally paid 48 dollars to rent a bike. How many hours did she pay to have the bike checked out?

Freemont Run Club surveyed a random sample of 30 members about their running habit. Of the members surveyed, 9 said that they run more than 5 days a week. There are 84 Freemont Run Club members.

A reporter collected date on y, the current market value, in dollars, of a certain car for various years, x, after it had been purchased new. the equation below was fit to the date. y = 16,500-1500x.

What is the relationship of the scale factors

Kelli has $450 in a savings account. She wants to have at least $300 at the end of the summer. She withdraws $15 per week. How many weeks can Kelli withdraw money from her account

Is16 over 81 a irrational number

Can somebody solve this for me $1.12 for 9.2 ounces

Does anyone know anyone who has Angelman or happy puppet syndrome?