The correct spelling of a word for letter writing material is
a. stattionery.
b. stationery.
c. stashunery.
d. stationary.

B. Stationery is the answer.

A. and C. aren't actual words and D. is an adjective referring to something that doesn't move, and is in one spot. Only B. is a noun that refers to office equipment.

Maria : 26.50 - 0.25(26.50) = 26.50 - 6.625 = 19.88
            19.87 + 0.10(19.87) = 19.87 + 1.99 = 21.86

Edwin : 0.75(26.50) = 19.88
             1.10(19.88) = 21.86

and if they each have $ 23, then yes, they both ave enough money to buy the book. They both were correct in their calculations. Because taking 25% off, is the same as paying 75%and taking the discount price and subtracting 10% from that, is the same as multiplying by 110%. So they basically worked the same problem, just in a little different way...and they both ended up with the same answer