Answer :

B, D, B, assuming you got 4 based on highlight, C,B. as far as my knowledge goes, but those seem right.
Panoyin
1. 846 - 77
    769
    The answer is D.
 
2.  f(t) = 3t² + 8
    f(4) = 3(4)² + 8
    f(4) = 3(16) + 8
    f(4) = 48 + 8
    f(4) = 56
   The answer is D.

3. The answer is B.

4.      2x + 12y - 24 = 0
                         + 24 + 24
           2x + 12y = 24
    2x - 2x + 12y = 24 - 2x
                   12y = 24 - 2x
                   12y = -2x + 24
                    12          12
                       y = ⁻¹/₆x + 2
                    f(x) = ⁻¹/₆x + 2
   The answer is C.

5. y = 4x - 8
   The answer is B.

6.        4x + 7y = 20
    4x - 4x + 7y = 20 - 4x
                   7y = 20 - 4x
                   7y = -4x + 20
                    7            7
                     y = ⁻⁴/₇ + 2⁶/₇
     The answer is C.

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