If you combine the data from both beavers (in beaver1 and beaver 2 data sets), how much higher was the average (mean) temperature during periods of activity vs. periods of rest?

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 ?

Could someone with number 1 and 2

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?