Acomputer repairman makes $25 per hour. which equation models the situation? let h represent the hours worked. let d represent the total amount earned.

Find the difference (8ab+a+2) - (3ab+6)

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Identify the parent function that can be used to graph the function f(x)=3(x-9)2