Can someone pls help me with these math questions? Ill give 30 points and brainliest pls help this is a timed test

Write each expression in exponential form and find its value.| ! 2 x 2 x 2 x 2

Gabriel paints flower pots to sell at a craft fair. she paints 2/5 of a flower pot teal, 1/4 of it yellow, and the rest of it white. what fraction of the pot is painted either teal or yellow?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?