Use the equation y=7x to complete the table. what are the missing values of y

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

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Rounded to the nearest tenth, what is the value of x