A shipping company charges Jim $8.70 for packaging materials plus $1.75 per pound to ship an item. The total charge would be $17.45 without any discounts. If Jim has a coupon for 20% off of the per-pound shipping rate, how much will he save? round your answer to the nearest cent, if necessary.

Ineed if you could explain and give me the answer you! this needs done

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"