Which of the tables, if any, shows a proportional relationship? Explain how you know

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

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog