if A to the power of n denotes(11111n) times. Then a to the power of 21 is divisible by. A)11. B)13 C)7 D)9

x + 107

step-by-step explanation:

let's say that the number he had before the mistake was x. then, he will have 107 dollars more than this, so the answer is x + 107.

4400

step-by-step explanation:

the answer will be b x² +x-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.