At a home improvement store, you
decide to purchase a hammer and
a pack of nails. the hammer costs
$8.53. the pack of nails costs $0.87.
what is the total cost? how much
change will you receive if you pay
with a $10 bill? a $20 bill?

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.