The coordinates of r is ( 4, -1 )
Answer:
7x+54
Step-by-step explanation:
because you distribute the 7 to the x and the 8 first then you bring that down which becomes 7x+56 then you to the addition so you do 56+-2 which would give you 54.
Answer:
Random, because he surveyed 30 <em>random</em> shoppers
