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julie and holly both make bead bracelets. each bracelet has 12 large beads and 20 small beads on it. julie has already made 12 bracelets. holly has already made 14 bracelets. julie can make 2.25 bracelets per hour and holly can make 1.25 bracelets per hour. after how many additional hours, h, will julie and holly have made the same total number of bracelets?

which equation below correctly represents the situation above?
a. 12 + 2.25h = 14 + 1.25h
b. 12 + 14 + 32 = 2.25h + 1.25h
c. 2.25h = 1.25h
d. 12 + 14 + 2.25 + 1.25 + 32 = h

1. what is the measure of ∠abc? what is the measure of ∠abd?

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.