algebra
posted by vera .
haley read less than twice as many books as her brother did last summer. Haley read five books. Which equation could you use to find how many books her brother read(b)?

A car salesman earns a 20% commission on every car that he sells. Approximately what commission would he make if he sold a car $9,895?

What are your choices?

haley = h
brother = b
h < 2b
incorperate your numbers
5 < 2b
(this is the equation I would use) 
A car salesman earns a 20% commission on every car that he sells.
Approximately what commission would he make if he sold a car for $9,895?
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