Three boxes are stacked on top of the other. one box is 6 ft. 9 inches, one is 6 ft. 11 inches and the other is 6 ft. 5 inches. how high is the stack?
write your answer in feet and inches. use a number 12 inches or less

What value of x is in the solution set of 4x – 12 s 16 + 8x?

Identify the slope an intercept of the following linear equation y = 1/5x - 6 a. slope: 1/5; intercept: -6 b. slope: 5; intercept: -6 c. slope: -1/5; intercept: 6 d. slope: 1/5; intercept: 6

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?