Which subtraction sentences have a difference of 1 1/4? Choose Yes or No for each number sentence.

A. 5 2/8 - 4 1/4
Choose:
Yes or No

B. 8 3/4 - 7 1/2
Choose:
Yes or No

C. 2 1/8 - 1 7/8
Choose:
Yes or No

D. 9 5/12 - 8 1/6
Choose:
Yes or No

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )