June :
900 + 0.02(48,500) + 0.018(48500 - 17500) =
900 + 970 + 558 = 2428 <==
July :
900 + .02(50,200) + 0.018(50200 - 17500) =
900 + 1004 + 588.60 = 2492.60 <===
bearing in mind that 9 months is not even a year, but since there are 12 months in a year, then 9 months is really 9/12 years.


Answer: 4
Step-by-step explanation:
1 km=0.621mi
xkm=106 mi
x=106/0.621=170.66
b is the answer
ax+by=20
a represents how many first items you bought
x represents the cost of the first item
b represents how many second items you bought
y represents the cost of the second item