Ineed catching up my assignments

1. the cost of a fit bit is $187 with two bands. this amount is $38 dollars more than the cost without the extra bands. find the cost of the fit bit without the extra bands. you only need to write the equation!

2.
dakota is her uncle plant an apple orchard. after picking up a truckload of trees, they plant 20 of them. the next day, they still have 50 trees left to plant.

3. trevor takes up a test at school and completes it in an hour. the test has two sections. if he takes 35 minutes to complete the first section, how much time does he have left to complete the second section? write the equation only

4. trevor takes up a test at school and completes it in an hour. the test has two sections. if he takes 35 minutes to complete the first section, how much time does he have left to complete the second section?