What is the equation of the line that passes through the points ( 5,-2) and (-5,0)

Nine more than four times a number is the same as one less than twice the number. find the number?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?