Answer:
x = $1 & y = $2.
Each doughnut cost $1 and hot chocolate cost $2.
Answer:
287 books
Step-by-step explanation
there was already 239 books. when the problem mentoins that Mary ADDS MORE books to the shelf, the operation is addition.
239+48=287
Greetings! let’s solve this shall we?
So,
7x + 14 > -3x - 6
14 > -3x - 6 + 7x
14 > 4x - 6
20 > 4x
5 > x
Http://prntscr.com/enb5tw you will find the answer there
275x5=1375
This means that the helicopter has dropped 1375ft closer to the ground, then when it was at x altitude