15 points Need ASAP- Use the table to write a proportion ~ (table on picture)

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?

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs