Evaluate the expression when
a = 0.3
b = 0.5
c = 0.25

5a - 7b + 6c

True or false look at the picture pls : /

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?

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.