Answer:
It would cost 3.6 dollars to by 4 bags of trail mix and 4.35 dollors to by 3 packs of chip
Explanation:
Let x = number of bags of trail mix
Let y = number of bags of chips
0.90x + 1.45y = the total amount
( plot the number in )
0.90(4) + 1.45(3) = the total amount
( now multiply 0.90 by 4 and 1.45 by 3 )
3.6 + 4.35
Therefore it would cost 3.6 dollars to by 4 bags of trail mix and 4.35 dollars to by 3 packs of chips
Hope it helps!