20 POINTS Justify each step of the solution by stating the property that was used to get to each step.
Given: 2(10 − 13)+ 9 −5 = −34 + 55
Step 1: 2(10 −13) +9 = -34 + 60
Step 2: 20 — 26x + 9x = -34x + 60
Step 3: -17x = -34x + 40
Step 4: 17x =40
Step 5: x = 40/17

Question 3 of 30 paul buys fruit to make smoothies. he buys 3.78 pounds of apples, 2.12 pounds of peaches, and 4.45 pounds of oranges. paul rounds each weight to the nearest tenth of a pound. about how many pounds of fruit did paul buy? (a) 10.5 pounds (b) 10.2 pounds (c) 10.4 pounds (d) 10.0 pounds 30 points

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a