10 1/2 I am pretty sure its right
C^2-64 is a square roots factoring one. you take the square root of c^2 which is c and then the square root of 64 which is 8 or -8 so the answer is (c-8)(c+8). and it is a special product
5p+1.49-2p-6.49
Combine like terms
3p+1.49-6.49
=3p-5
