$12.80 × 1.075 = $13.76
$13.76 × 1.15 =$15.82
It is 30-88 degrees I think
AB and BC.
Also, it is EXTREMELY important that you put an arrow facing to the left above AB and an arrow facing to the right above BC.
5) 1.1802 x 10^6
6) 0.00016
7) 4.3 x 10^-3
8) 2,835,000