A bike rental company charges $18 to rent a bike plus $8 for each hour the bike is rented. An expression for the total cost of renting a bike for h hours is 18 + 8h. Complete the table to find the total cost of renting a bike for h hours.

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)