Given a standard deck of cards, what is the probability that you choose a red card and then choose a heart, assuming you replaced the first card? A. 3/26
B 7/26
C 1/4
D 1/8

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%