Orla says that x = 5 is a solution of x² + 3x - 10 = 0 and Fiona says that x = -5 is a solution of x² + 3x -10=0.

One of the answers is correct. Say which answer is correct and justify 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

Which of the following are accepted without proof in a logical system? check all that apply.

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.