so the first thing your going to do is 9.2 times 3.3, because of the pemdas or Please excuse my dear aunt Sally meaning parentheses, exponents, multiply, division, add, subtract. STAY IN ORDER! Now times the 9.2 and 3.3 together, and you'll get 30.36, now add 2.1. Now you have 32.46 times .8 and in the end you'll have 25.968. HOPED IT HELPED MATE