Whoever shows work and gives best answer gets brainliest

Graph the equation. select integers for x

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

How to find the exponential function y=ca^x, with points (1,2) and (2,1)