7th Grade Math for Reiny or Steve~!

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Find the first four terms of the sequence represented by the expression.
4.
3n + 5 (1 point)

5, 8, 11, 14
8, 11, 14, 17
3, 6, 9, 12
0, 8, 11, 14

Find the next three terms in the sequence.
6.
–1, 9, 19, 29, . . . (1 point)

38, 37, 32
40, 51, 62
39, 49, 59
38, 47, 56

8)A gas station charges $2.19 per gallon of gas. Use function notation to describe the relationship between the total cost C(g) and the number of gallons purchased g. (1 point)

C(g) = –2.19g
g = 2.19C(g)
C(g) = g + 2.19
C(g) = 2.19g


My Answers:
4)B
6)C
8)A

Are these correct???

  • 7th Grade Math for Reiny or Steve~! -

    #4 and 6 are correct,

    #8 should be
    C(g) = 2.19g , which looks like choice D
    e.g if you bought 8 gallons
    C(8) = 2.19(8) = 23.28

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