Someone?? Can you help me with this?? Determine the number of roots of each polynomial equation.

1. x⁶+8x⁴-4x+10=0

2. (x+9) (x-9) (x+9) (x-9)=0

3. 5x⁴(x-7)(x²+8)²=0

4. -9x⁷+10x-7=0

5. 8x⁴-6x-9x³=0

which class question is this

i think asking google will you get the answer to that question

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: