I am stuck! No websites please 1,2, and 3 is done

Complete 4,5, and 6

Instructions: you have 3 choices to do R(Remainder) Q(Quotient) Q+1(Quotient + 1)
Write a sentence, the division problem, and say which one your doing.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

What is the inverse of f(x) = 6x -24

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120