Hi! If you could attach an image of the coins, I would love to help!
Answer: 35 diagonals
Step-by-step explanation:
A decagon has (10 2) – 10 = 35 diagonals.
7x+2m+25 I believe is the answer
So basically I added the x’s first 3x+4x=7x
Next I added the m’s 7m-5m=2m
That left 25
And a + are left
So the two answers 7x+2m and add +25
7x+2m+25
4x^3+2x-7
three terms
degree of three
Answer:
C
Step-by-step explanation: