Please help me, I will give brainlest if it's correct.

Me find the measure to side a and the process to solve the problem you appreciate it : )

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

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.