8. Sophie needs $130.50 for a train ticket. She already has $18, and she can earn the rest by working 12.5 hours at her job. Which equation can be solved to find h, Sophie's hourly earnings.

Is the orthocenter of a triangle on the inside ?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared