blake buys paperback from the used bookstore for $5 each. natalie purchased an annual membership to the same bookstore for $35
so she can buy paperbacks at a discounted price of $2.50 each. how many books would natalie and blake have to buy this year for their spending at the bookstore to be the same? what would their total cost be?

What is the equation of a line that passes through points (0, 4) and (-4,-8)?

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb.the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.

If the figures below are similar give the scale factor of figure a to figure b