What is the value of b if 9 + b = -8

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?