Ur just messing around arent u "همانا " is literally a different language ._.
Y - 190 = 55(x - 2)....distribute thru the parenthesis
y - 190 = 55x - 110....now add 190 to both sides
y = 55x - 110 + 190..simplify
y = 55x + 80 <== slope intercept form (y = mx + b)
Answer:
$64.5745
Step-by-step explanation:
You had to do this:
9.99+11.99+11.99+21.00+21.00=75.97
x = 85
75.97 100 85*75.97=6457.45
100x=6457.45
6457.45/100= 64.5745