Which of these formulas models this arithmetic sequence?

5.9, 5.5, 5.1, 4.7, 4.3, . .

an = -0.4 + (n – 1) × 5.9

an = (n – 1) × (-0.4)

an = 5.9 + (n – 1) × (-0.4)

an = 5.9 + (n – 1) × 0.4

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.