The surface area is 76m square
2.00 * 8.5%, which is also 2.00 * 0.085
2.00 * 0.085 = 0.17
2.17 after sales
Since sum indicates addition, you want to add the two terms together.
B + (5x2)
If the answer needs to be simplified, you can do the multiplication to get:
B + 10
He must change it 216 degrees fahrenheit before the water boils.