SOMEONE HELPPP ME ASAP
answer questions 1-4 plsss with showing your work!!

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

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)