A coordinate plane.
A line goes through the point (6,–2) and has a slope of –3.

What is the value of a if the point (a,7) lies on the line?line?

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?