How much will it cost to mail a first-class letter that weighs 2.8 oz? the rate is $.22 for the first ounce and $.17 for each additional ounce or fraction of an ounce. a. $.56 b. $5.60 c. $.53 d. $.39

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

What’s the volume of the triangular prism?

Solve 13 + w/7= -18 (w/7 is a fraction)