If u answer these questions correctly i will make u brainliest.

1. If 80% of the 400 students at Washington Junior High School passed the ILearn test, how many students did not pass the ILearn test?
2. Mallory’s bill at the Townie Deli is $15.70, not including tax. If she leaves an 18% tip and has to pay 7% sales tax, how much is the total bill?
3. A tablespoon is equivalent to about 4 teaspoons. A recipe calls for 2/3 cup of sugar for every 1/2 teaspoon vanilla. What is the unit rate in tablespoons per cup?