Which is closest to the area of a circle with a diameter of 19 meters? can somebody me .
a.
890 square meters
b.
283 square meters
c.
29.8 square meters
d.
59.7 square meters

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Sara can take no more than 22 pounds of luggage on a trip. her suitcase weighs 112 ounces. how many more pounds can she pack without going over the limit?

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a