[Question]At the museum, Bethany saw 4 times more still lifes than portraits. If she saw 80 paintings total, how many portraits did she see?
[Answer]Let s be the number of still lifes Bethany saw and p be the number of portraits. We know that s + p = 80 and s = 4p. Substituting the second equation into the first equation, we get 4p + p = 80. Combining like terms, we get 5p = 80. Dividing both sides by 5, we get p = 16. The answer is 16.

[Question]A newspaper subscription costs $10/month. If you purchase an annual subscription you obtain a 20% discount on your total bill. How much do you end up paying if you go with the annual subscription?
[Answer]A year has 12 months. If 1 month costs $10, then a year will cost $12 * 10 = $120 per year without an annual subscription. If the annual subscription has a 20% discount then you would pay $120 * (1 - 20%) = $96 for the annual subscription. The answer is 96.

[Question]Grace's age is 3/8th the age of her grandmother. Her grandmother is twice the age of Grace's mother. If Grace's mother is 80 years old, how old is Grace?
[Answer]Grace's grandmother is 2 * 80 years = 160 years old. Grace's age is 3 / 8 * 160 years = 60 years old. The answer is 60.

[Question]Albert wants a paintbrush that costs $1.50, a set of paints that costs $4.35, and a wooden easel that costs $12.65. Albert already has $6.50. How much more money does Albert need?
[Answer]
The total cost of the paintbrush, the paints, and the wooden easel is $1.50 + $4.35 + $12.65 = $18.50. Albert needs $18.50 − $6.50 = $12 more. The answer is 12.