Yea imma need help with this so be nice and drop a correct answer plz

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

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?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu