3(2+q)+15
First you distribute 3 with 2 and q
(3)(2)+(3q)+15
And that gives you 6+3q+15
Next you combine like terms
6+3q+15
(3q)+(6+15) leave 3q the way it is and then add 6+15
And the answer is 3q+21
1. 3 buddies share 2 crackers evenly, 2/3 because you have 3 buddies and two crackers, meaning not everyone is going to get 1 cracker, so it is 2/3
2. 9 puppies and 4 liters of milk, 4/9, because there are 9 puppies and 4 liters of milk, so like the last one, not everyone will get one so it would be 4/9
3. 4 friends and 3 chocolate bars, 3/4, because if they each get 1/4 of each bar, 1/4 x 3 = 3/4 bars per person
4. Same as #1