Thirty feet of plastic pipe costs $19.50. What is the unit cost? A) $0.56 per foot
B) $0.65 per foot
C) $0.75 per foot
D) $1.54 per foot
pl show work

Geometry in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?

Solve 17= -13 - 8x and show your work.