Samantha has a bag of marbles. She has 21 striped marbles, 5 cat's eye marbles and 19 solid color marbles. Samantha draws one marble out of her bag. Express each of the following probabilities as a
fraction, decimal and percent.

Solve 2^x=32 and rewrite this equation in a logarithmic form

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.