Multiple the following two polynomials (5c-2)(3c2-5c+4) A. 1503-31c4+30c2-8
B. 1503-31c2+30c-8
C. 1503-19c2+10C-8
D. 1503-31c2+30c+8

the answer is 99.

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated