Which are reasons to use Collaborative Learning check all that apply. plz ill give brainlist

The forerunner to cell phones, pdas, and smartphones was

In cell b18, enter a formula to calculate the amount budgeted for meals. this amount is based on the daily meal allowance and the total travel days (# of nights+1).

In a game with three frames, where will the objects on layer 1 appear? a. next to the play area b. in the middle of the game c. behind everything else d. in front of everything else