What is the slope of the line passing through the points (1, –5) and (4, 1)? a. 2 b. -4/5 c. 5/4 d. –2

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