Sadie is purchasing spools of ribbon for a school project. If she spends $14.30 and each spool is $1.30, how many spools did she purchase?

9

10

11

12

A recipe for chocolate chip cookies calls for 1 and 3/4 cups of flour. If you are making 2 3/4 recipes, how many cups of flour are needed?

A disease has hit a city. The percentage of the population infected t days after the disease arrives is approximated by p (t) equals7 t e Superscript negative t divided by 13 for 0less than or equalstless than or equals39.

The radius of a smaller circle is half the length of the radius of a larger circle. The area of the larger circle is 20 square inches. What is the approximate area of the smaller circle? A 5 square inches B. 10 square inches C 12 square inches D.

A particle moves with velocity function v (t) = - t2 + 5t - 3, with v measured in feet per second and t measured in seconds. Find the acceleration of the particle at time t = 3 seconds.

Which expression represents the phrase "4 times the sum of 9 and 6

How many intersections are there of the graphs of the equations below? 1/2x + 5y = 6 3x + 30y = 36

Henry and Margo both began traveling around the circular track. Henry is riding a bike, and Margo is walking. It takes Henry 9 minutes to make it all around, Margo takes 12 minutes. How much time will pass until they meet at the starting line?

Candy is selling at $6.00 per pound will be mixed with candy selling at $9.00 per pound. how many pounds of the more expensive candy are needed to produce a 15 pound mixture that sells for $7.00 per pound

The radius of a circle is one yard. what is the diameter?

Simplify (6y + 10z) - (13y - 5z + 4)