Which of these statements explains the term supplya) supply reffers to the seller ability and desire to sell goods and servicesb)supply reffers to the seller ability and desire to buy goods abd servicesc)supply reffers to the buyers ability and desire to sell goods and services

Ineed to learn how to solve this problem

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?