You multiply like terms first, which means -2/3x*-x. It becomes 2/3x*3y. The coefficient of x is 2/3. The coefficient of y is 3. You can’t combine them because they are not like terms with the variables.
7/10 is the simplest form of the fraction when you multiply (3/5) by (7/6)
The answer is that his average is 75.5 for the second nine weeks
See https://web2.0calc.com/questions/need-help-now_10.
