Answer:
X = 20.6 inches
Step-by-step explanation:
Pythagorean Theorem: 
A = 41.2 in, while B = 35.7 in and we are solving for C.


Now solve for C

Take the square root

Answer: 4n^2
Step-by-step explanation: -3n^2 - (-7n^2) = -3n^2 + 7n^2= 4n^2. When adding and subtracting the exponents stay the same only the coefficients are subtracted or added
75% because he played 3/4 quarters which is 75%