Please help fast!!

evaluate functions

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

Which number line represents the solution set for the inequality -1/2x> 24?

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