To get an average, you must do the following steps.
step 1:add all the numbers together. 190258.50+152698.00+122753.00+220523.00+231951.00= 918183.5Step 2: divide the ANSWER you get by the amount of numbers there are: (in this case, it will be 5, because you added 5 numbers together) 918183.5/5
Step-by-Step explanation: 7 is the width and there are two wide sides so you have 14. 34-14 is 20. Now because you have 20 left and there are two long sides you need to divide 20 by 2. 20 divided by 2 =10.
