With math you, will give brainliest !

A

7*(1)(14) = 98 Not the right answer. I have done what is inside the brackets first. (5 - 4) = 1; (5 + 9)= 14; 7 * 1 * 14 = 98 which is not 6

B

7 * [1 * 5] + 9 = 44; 7 * 5 + 9 = 35 + 9 = 44 Also not 6

C

7*[5 - 20 + 9] = - 42; Not 6 as well 7*[14-20] = 7*-6 = - 42

D

7*5 - [20 + 9] = 35 - 29 = 6

Answer D

answer: -1

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.