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9. Which of the following is a mathematical sentence? *

1 point

the square of twice a number x

nine less than eight times the number

seven more than x is twelve

the product of two consecutive numbers



This is a required question

10. Let a = –2, b = 8 and c = –4. Evaluate /. *

1 point

2

3

4

5



This is a required question

11. What is the value of abc, when a = 3, b = –1 and c= –4 ? *

1 point

9

10

–12

12



This is a required question

12. Which of the following algebraic expressions is a polynomial? *

1 point

7x⁻²

7 + x

7/x

√(7)

13. How many terms do the algebraic expression 6a²b + 3ab – 5 consist of? *

1 point

2

3

4

5