Help pls I'll give brainliest to whoever answers correct we have to make these fractions it the sinpilist form

Choose the correct classification of 3x4 − 9x3 − 3x2 + 6. 5th degree polynomial 4th degree polynomial 9th degree polynomial 24th degree polynomial

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.