20-(2x6) +8 divided by 4
2 times 6 = 12
8/4 = 2
20-12+2
It would be 14 not 29
He used PEMDAS in the wrong order
Percentage is out of a 100. Therefore, 35/100
Simplify 35/100
Becomes 7/20
Fraction of 35% is 7/20
Go to www.khanaccedmy.com, that will help you.
The ans will be 16y^2
As 9y^2+7y^2=16y^2
-4/5 is the skip of the graph