How to express the first one in distributive property and the second one to write the ratio of pretzels to bread chips?

For the first one on top, you would first add 27 plus 60, which is 87. Then, you will divide it by three. So on the outside of the parentheses, you will put down 3. Then, you will subract 87 and 29. You will put 29 and the difference of 87 and 29 inside the parenthese.

For the second one on the bottom, you would read the problem carefully. Notice that in the problem, it says pretzels to chips.That means you would write the cups of pretzels:cups of chips. 

Hope this helped.