How is multiplication using partial products diffrent from multiplacation using regrouping how are they similar?

How to use order of operation in 20 divide by 4 multiply 5 = 1

Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.

90.0% complete a b c d e confirm last week, your delivery runs took 7 hours 12 minutes on monday, 6 hours 46 minutes on wednesday, and 6 hours 53 minutes on friday. what was your average time for a delivery run?