12v + v - 6v - 4v This is the question I need answered, thanks.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

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

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)