I am equivalent to 2/3 (two-third).The sum of my numerator and my denominator is 30. The difference between my denominator and my numerator is 6. What fraction am I?

Math it's appreciated. (picture provided)

Hurry which expression is equivalent to 3√x^5y?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?