Find the measure of ∠angle1, ∠angle2, and ∠angle3 if m∠angle4 = 100°

What expression is equivalent to 1/2(2+3x-6)

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?

Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 −3?