We have been given the steps to solve the equation as
Step 1: 2x = 18
Step 2: x = 18 − 2
Step 3: x = 16
There is an error in step 2.
We have 
x is in multiplication with 2. So in order to get rid of 2 from the left hand side, we perform opposite operation of multiplication i.e. division.
So we must divide both sides by 2.
Therefore, A is the correct option.
A) She did not divide 18 by 2.
Yes is H because the symbol mean equal or less than
The cost per gallon is 13.3 Repeated.
Answer= 40%
40% of call are for air conditioners
1/5 of calls are for heaters
First, lets convert 1/5 into a decimal, and then a percent value.
1/5=0.20=20%
20% of calls are for heaters
100% represents the amount of service calls Mike receives.
100%-40%-20%=
100%-60%=40%
40% of the service calls Mike receives are other calls.
Have u tryed 1 insted of -1 or it might be o solution