Answer:
He grows beets on 0.25 acres of land
Step-by-step explanation:

a quarter is the same as 0.25
12 cards + 24 cards = 36 cards
36 cards - 13 cards = 23 cards
You gave your brother 23 cards
Ab + c = d
In other words, you can put it like this:
1(ab) + 1c = 1d
Since our answer choices, let's try to get a by itself.
ab + c = d
Subtract both sides by c.
ab = d - c
Now, a is being multiplied by b, so we need to perform the opposite order of operations (divide).
Divide both sides by b.
You're left with:
a = (d - c)/b
Your answer is D.)
I hope this helps!
If your teacher wants you to factor, then use the difference of squares rule
9x^2 - 4
(3x)^2 - 2^2
(3x-2)(3x+2)
3x-15/x+3= 3x-6/5x-10
so this is how you set it up then you can solve for x