it b = the number of blue bikes, which algebraic expression represents the phrase below? the sum of the number of blue bikes and the 9 red bikes A D-9 oc B. b + 9 C. b49 D. 0.9​

I’m stuck on this i don’t understand.

Wanna brainliest? ! ms. mcmahon is building a shed as shown. what is the measure of the angle at the top of the shed? a) 126 b )116 c) 64 d) 32

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.