12. You pay 3.3 cents per minute for long-distance phone calls on your phone. Your...

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...phone bill is $3.40. Writ? 12. You pay 3.3 cents per minute for long-distance phone calls on your phone. Your phone bill is $3.40. Write and solve an equation to find the number of minutes m of long-distance calls you made.

3.3/100m = 3.40; 103 minutes

m/3.3= 3.40; 11 minutes

3.40m/10= 3.3; 83 minutes

3.3m = 3.40; 10 minutes
 
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