Question 5(multiple choice worth 4 points) pablo purchased adult and youth tickets for the football game. he bought x adult tickets for $74 each and y youth tickets for $35. write an expression that can be used to show the total cost, c, of all tickets. c = (74 + 35)x c = (74 + 35)(x + y) c = 74y + 35x c = 74x + 35y

How is working backward similar to solving an equation?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.