Answer:
i think it would be 400=10d
A.. 9.5*3.6=34.2 then 34.2/5.7= 6 so 6 is your answer
B. 16.2*5.7= 92.34 then 92.34/3.6= 25.65
Since she had $35.48 on her card.
Amount spent in buying coffee = $70 - $35.48 = $34.52
Cost of coffee = $8.63 per pound
No of pounds = Amount spent / cost per pound
= 34.52 / 8.63 Use your calculator.
= 4