#3.) 48 pieces of ribbon
#3.) this week they cost $112
67-x-20 hope this helped!!
When you are given a point (x1,y1) and slope m the equation is
y-y1=m(x-x1)
given
slope=7
(x,y)
(3,22)
x1=3
y1=22
y-22=7(x-3) is the equation or
y=7x+1
f(x) = 2x - 7 This should be the answer!!
