F(x)=x^2-3 and g(x)=3x+1. Find (g o f)(x)

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

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?

Need showing work for this problem 56.25 ×25.80