X+2x+3x+4x=9x. x is a variable that represents the number of points he won so far
Answer:
The surface area of the square prism is 
Step-by-step explanation:
we know that
The surface area of the square prism is equal to

where
b is the length side of the square base
h is the height of the prism
In this problem we have


substitute

Answer:
second option
Step-by-step explanation:
The perimeter P is the sum of the 3 sides, then
P = 4x² + 3 + 2x - 5 + x + 11 ← collect like terms
= 4x² + 3x + 9
Answer:
I think d equation most. closely represents
Answer:
1/ 112
Step-by-step explanation:
1-½ = ½ ( Mr. Daniel's leftover)
½×½= ¼ ( Mr. Richie)
½×¼= 1/8 ( Ms Laura)
½×1/8 = 1/16 ( Ms. Kimberly)
1/7 × 1/16 = 1/ 112 (the last turn)
so, Ms. Sarah eats 1/ 112 of a piece.