What is the cost of the following?
6 cans of corn at 3 / $1.00
3 boxes of cereal at $0.99 each
1 loaf of bread at $0.45 each
6 lbs. of apples at 2 lbs. for $0.80
1 box of jello at 2 / $0.54

What is the product? a-3/15a × 5/a-3

Find the maximum value of p= 4x + 5y subject to the following constraints :

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z