I need to find the value of x can someone help

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Find the values of y: 3y^3(y^2+ 2/3y)=0

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.