*HELP QUICKLY PLEASE.* which of the following is correct? grandson needs help.

according to his teacher this needs to be done within the hour.

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

Brent wants to know what is 5 x 1/2

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.