Answer:
The answer to your question is letter A. Regular size is cheaper than Economy size by $0.0003 per gram
Step-by-step explanation:
Cost of 1 gr of economy size
5000 gr (5 kg) ------------------- $ 5.15
1 gr -------------------- X
x = 1 x 5.15 / 5000 = $0.0010
Cost of 1 gr of regular size
820 gr ------------------- $0.60
1 gr -------------------- x
x = 1 x 0.6 / 820 = $ 0.0007
Difference of cost = $0.0010 - $0.0007 = $0.0003
Answer: i believe bill saved $21.44
Step-by-step explanation: 68.99-57=11.99
37.80-25%=28.35
37.80-28.35=9.45
9.45+11.99=21.44
I think the answer is 31.75
39.92 / 8 = 4.99 per filter
for 6 filters...
6 * 4.99 = 29.94