1. Cell
2. Tissue
3. Organs
4. Organ System
X = y
x times y = y times z
we can use the number 2 for x
x=2
y=2
2 x 2 = 2 x z
4 = 2z
divide both sides by 2
2 = z
So, x=y=z=2 they are the same value no matter what number is used.
$32,900
Multiple their current earnings, multiply it by 0.7 (70%), and the result is $32,9000
Easy,
solve for x by simplifying both sides of the equation, then isolating the variable. That being said:
8x+4≤-20
Solve for x, isolate it
8x+4≤-20
-4 -4
8x≤-24
Now, divide,


Thus, A, is your answer.