At Pizza Palace, 1 large and 2 small pizzas cost the same as 5 small pizzas.
A small pizza costs $4.
What is the cost of a large pizza?

What is the fewest number of marbles that Jeff could have?
Here are the clues:
When he puts them in groups of 3, there are no marbles remaining.
When he puts them in groups of 2 or 5, there is one marble left.

Randy and Luisa started reading their books at the same time.
Randy reads 12 pages a day.
Luisa reads 8 pages a day.
After 4 days, how many more pages has Randy read?

Curt has some change in his pocket.
He has 3 quarters, 2 dimes, and some nickels.
Altogether, he has $1.30.
How many nickels does Curt have?

Katie is having fun measuring things.
This is what she discovered:
2 straws are as long as 5 crayons.
15 crayons are as long as 28 paperclips.
How many paperclips are as long as 3 straws?