Lines y = −2x + 3 and y = 3x – 5 intersect the x-axis.
It's not clear what polynomial you posted, but let's say you had the polynomial
5x^3+7x^2-9x+10
This is a cubic polynomial as the largest exponent is 3. The degree is also 3. The degree of the polynomial is equal to the largest exponent.
The answer is 8/17 because you have to change the fractions to improper fractions then change the division sign to a multiplication sign. Then change the second fraction by flipping the two numbers then multiply and reduce.