Write and solve an equation to answer the problem: The final bill for dinner, including tip was $172.50. If the diners tipped 15%, what was the bill before the tip?

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is