What operation would you perform last in this problem (2×3)+(7×2)

What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

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?