Martin was going to the market to buy apples. the price for apples is $3.50 times the number of apples bought plus one-dollar tax. write a polynomial function a that represents the price of apples in terms of n. if martin bought 3^3 amount of apples. how much did the apples cost?

Asphere has a diameter of 10 in. what is the volume of the sphere?

Which expression will have the same sum as 3_8 + 1/4?

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?