Jennifer has been saving for college for 57 months. the first month, she saved $11.
she was able to save more money each month than the month before.
she ended up saving $19,779.00. how much more did she save each month?

a)$11
b)$11.50
c)$12
d)$12.50

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?