Which statement is true about the parts of this expression? 7.5y-z/9+50+2y he constant is 7.5. the coefficients are 7.5 and -9 the variables are x and y. the like terms are 7.5y and 2y

First, False b/c 7.5 is not the constant because it multiplies by y ==> 7.5 is a coefficient
Second, False because -z/9, you can understand it as . So, 7.5 and -1/9 are the coefficient, not 7.5 and -9.
Third, False, because z and y suppose to be the variable, not x and y variable.
Last, True because they both have the term y multiplies by a coefficient.