Area of rectangle = Length*width
A = 28 so 28 = 4 * height
height = 28/4 = 7
Answer:
-34b4
Step-by-step explanation:
Since the variables are the same b4, you just add the constants (-16 & -18).
Make it in exactly five steps.
Hope this helps.
Idk seriously i suck at math but i use photomath it is a really good app u should try it
1.

Answer D.
2.
From secant theorem, we know, that:

and from picture:

So we can calculate: