Please help solve this! 1/2 x x^3 + 3.4y =
( x^3 means x with an exponent of three)

x=3

y=4

If it helps, the answer choices are

15.85

18.1

27.1

31.6

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )