Answer:
Cost of each pillow is $120.
Step-by-step explanation:
Let P denotes cost of each pillow and M denotes cost of mattress.
Then, given cost of mattress is $769
also, Ally gave the cashier $1300 and received $51 change.
Total amount Ally paid = total amount she gave - total amount she receives back.
= $( 1300 - 51 )
= $1249
Since, Ally brought one mattress and 4 pillow . Thus, Total cost is given as,
⇒ M + 4 P = 1249
⇒ 769 + 4 P = 1249
⇒ 4 P = 1249 - 769
⇒ 4 P = 480
⇒ P = 120
Thus, cost of each pillow is $120.
