For his long distance phone service, Keith pays a monthly fee plus cents per minute. Last month, Keith's long distance bill was . For how many minutes was Keith billed?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244

What is the surface area of the sphere?

If two points are given,then exactly one line can be drawn through those two points.which geometry term does the statement represent