Answer:
0.391+8.42=8.811
8.811 in dollars is 10.42 United States Dollars
Step-by-step explanation:
Your answer is 10.42 c:
y=1.5x+1 is the equation
x×k = y
14×k = 12
k = 12/14 = 6/7
so, the equation is
x × 6/7 = y
or
y = 6x/7
y = 6/7 x
x = 3