All calendars are 40% off at a bookstore. which pair of expressions can both be used to find the price, p, of a calendar after the 40% discount?
a . 0.4 & 0.6
b. 0.6 & p-0.4p
c. p-0.4p & p-0.6p
d. 0.4 & p-0.6p
6th grade math

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55

Acertain group of women has a 0.640.64% rate of red/green color blindness. if a woman is randomly selected, what is the probability that she does not have red/green color blindness? what is the probability that the woman selected does not have red/green color blindness? nothing (type an integer or a decimal. do not round.)