I need your help solving these questions by using substitution or elimination method.
Here are the questions:
1)You are starting a business that sells air filters for homes. Your startup costs for the business are $1250 and each air filter kit costs $40.
If you sell the filters for $60, how many must you sell to break even?
2)If you buy 7 hamaburgers and 3 slices of pizza from Sizzler, you get $1 change from $20 bill. If you buy 8 hamburgers and 2 slices of pizza, you get $0.50 back from a $20 bill. How much change would you get from a $20 bill if you bought 3 slices of pizza and 5 hamburgers?
Thanks
2006-10-03
09:59:54
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