Fifteen is increased to 27. what is the percent of change? 55.6% 37% 44.4% 80%

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

What is the sum of these mixed numbers 4 2/3+ 3 1/9