A parabola can be represented by the equation y2 = 12x. Which equation represents the directrix?

y = –3
y = 3
x = –3
x = 3

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

Empty box + box + empty box fill in the box is equal to 30 how

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