The unit value if the 6 is the ones place
8 months; $740
75x+140=90x+20
Find x then plug it in to find the cost
The US to euros is 1: 0.7716,
The euros to Polish is 1:4.0518
0.77 4.05 0.77 1 0.77
----- / --------- = ------- x ---- = ------
1 1 1 4.05 4.05
(so for every 0.77 dollars it is 4.05 zolty.)
hope this helps
sorry if it is confusing
X=9.3 is the answer to the question
Take 30.16-17.56. Theb divide by 5