Question

Mike pays $2.79 for coffee every weekday morning on his way to work. On Saturdays, he goes to visit his mother and takes her out to her favorite coffee shop where he spends $7.83 for two coffees. How much does he spend per week for coffee?

Answer 1

$2.79 x 5 = $13.95 + $7.83 = $21.78 
Mike spends $21.78 each week for coffee

Answer 2

21.78, take and multiply 2.79 by 5 ( there are 5 week days), and add the 7.83 once because it is the price for the two coffees. So weekly he spends roughly 21.78 on coffees