Consider the steps to simplify the expression. What property of operation is used in Step 1?

Expression: -4 + 7 + (-3)

Step 1: = -4 + 7 + (-3)

Step 2: = -4 + (-3) + 7

Step 3: = -4 + (-) + (-3) + (-) + 7

Step 4: = -4 (-) + (-) + (-3) + 7

Step 5: = -4 + (-1) + (-3) + 7

Step 6: = -8 + 7

Step 7: = -1

Pls an ice cream shop sells 5 times as many cake cones as waffle cones use variable x to represent the number of waffle the ice cream shop sells and use this variable to write an expression for the number of cake cones the ice cream shop sells. enter the expression for the number of cake cones the ice cream shop sells

In trapezoid bath, ah=19.7 and et=16.1. identify be.

Answer this 30 points and brainliest!