What is the difference between -3 and 4?

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

What is the 12th term of b(n)=-4-2(n-1)