The coordinates of B would be C. (4, -8)
I got this because when reflecting over the x axis, the only value that changes is the y value. If you graph it out, the y value is the opposite while the x is the same.
Hope this helps!
Our inequality is 3(x-1) - 4x ≥-3. We can solve this like we solve for x in a regular equation. If I multiply 3(x-1), our new inequality is 3x -3 - 4x ≥ -3. If we add 3 to both sides and subtract 4x from 3x we have -x ≥ 0. But we want the value of x to be positive, not negative. So we multiply both sides by -1 and change the sign from greater than to less than. We get x<span> ≤ </span>0.
P(n, r) = n!
____
(n-r)!
= 8!
____
(8-1)!
= 8
The value that the variable can be to be a solution to the inequality is if the variable represents -6, values of -9 and -8 are smaller than -7 as they appear even further away from zero.
In order to make back the money they spent ($1,137.50) plus $1500, they want to make

$2,637.50 total.
They want to make this amount by selling 350 agendas, so divide the amount they want to make by 350 to find the amount per book:

I rounded the answer to the nearest hundredth because the hundredth is the smallest amount we have in USD (the penny.)
So they need to charge at least $7.54 to make back their money plus $1500.
Hope I helped, and let me know if you have any questions :)