Aisha's meal cost $15. she wants to leave a 20% tip. how much money should aisha leave for the tip?

a. $ 1.50
b. $ 2.00
c. $ 3.00
d. $ 3.50

could you also explain how i can find the answer to this in case i come across a question like this again?

Movie $5.50 soda $1.75 popcorn $2.25 candy bar $1.10 jeffrey left home with $20 in his wallet. he had a quick lunch that cost $8.47 and went to the movie theater. which of these activities can jeffrey do? a) go to movie and take two friends b) go to movie and have a soda, a popcorn and a candy bar c) go to movie, take a friend, and have a popcorn to share d) go to a movie, have 2 popcorns, 2 sodas, and 2 candy bars eliminate

Asquare has a perimeter of sixteen centimeters. what is the length of each of its sides? a. 8 cm c. 9 cm b. 4 cm d. 10 cm select the best answer from the choices

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?