What is the volume in cubic feet of one cube shaped block

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Prove that 16^4-2^13-4^5 is divisible by 11.

Which of the following exponential functions goes through the points (1, 6) and (2, 12)? f(x) = 3(2)x f(x) = 2(3)x f(x) = 3(2)−x f(x) = 2(3)−x