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6. Translate "the difference of a number and 7" into mathematical expression.
A. N-7
B. 7n
c. n+7
D.n - 7
7. Translate "two times the sum of a number and 4" into mathematical expression.
A. 2m + 4
B. 2 (m - 4) C. 4 (m + 2)
D. 2 (m + 4)
8. Translate "thrice the difference of 9 and a number" into mathematical expression.
A. 3r-9
B. 9r-3
C. 3 (9-)
D.r-9
9. Translate "the product of negative 6 and a number divided by 2" into mathematical expression.
A.-6y/2
B.6y/2
C.6y/-2y
D.6y/2y
10. Translate x2 + 5/y into verbal phrase.

A. the square of a number plus 5.
B. 5 divided by the square of a number
C. the quotient of two numbers D. the sum of a square of a number and 5 divided by another number
11. Find the value of the expression 2x + 6 if x = 4.
A. 14
B. 12
C. 8
D.4
Please I really need this​