NEED QUESTION ASAP

Help please

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

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

Kayla has a $500 budget for the school party. she paid $150 for the decorations. food will cost $5.50 per student. what inequality represents the number of students, s, that can attend the party?