Can you guys plz me with this expression! ?

1) 2/3(6e+9f-21g)

2) 4x+16

3)7x+35

i would appreciate if you can me.

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?