Please help with this! Jen is deciding to get a new phone. One deal is a free phone with a two year contract, but she will have
to pay the sales tax of 8% on the original price of $399 and the monthly charge is $10 more than she currently pays. The other is on sale for $199, plus 8% sales tax. The monthly charge is the same as what she currently pays. Over the two year contract period, which phone will be the lower cost and by how much?
0 + 1 + 2 + 3+ 4 + 5 + 6 + 7 +8 + 9 + 10 + 11 seems to equal 66. That means there are 11 + 1 = 12 people (don’t forget to count the person who shakes 0 hands)