If f(x) = 2x2 + 3 and g(x) = x2 - 7, find (f-9)(x). O A. 3x2 - 10
O B. 3x2 - 4
O c. x2 + 10
O D. x² - 4
Plzzz helpp

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

For each polynomial, determine the degree and write the polynomial in descending order. a. –4x^2 – 12 + 11x^4 b. 2x^5 + 14 – 3x^4 + 7x + 3x^3