Which of the following lists the sides of ADEF in order from shortest to longest?

Which of these choices show a pair of equivalent expressions?

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?