1. Put the values where the variables are, then do the arithmetic. 3(2·4 -4/3²) = 3(8 - 4/9) = 24 - 4/3 = 22 2/3 ≈ 22.7 It looks like the answer key missed this one. (Have your teacher show you how to work it.)
2. Add -84 to the equation. x = -106 The appropriate choice is a. -106
3. If your equation is 2=x+5, add -5 to get -3 = x Then the appropriate choice s b. -3