Ataxi driver estimates that his earnings are $240 on a fine day and $320 on a wet day. what are his expected earnings on a day with probability of rain of 0.45?

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.