Mandy bought a desktop computer system to start her business from home for $4.995. It is expected to depreciate at a rate of 10% per year. After how many years will the value of her home computer system depreciate to approximately $2,1507?

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?

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y

Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16