30/16=15/8...............
The complete question in the attached figure
we know that
[the <span>square feet of bricks]=9*4+14*3------> 36+42------> 78 ft</span>²
the answer is the option
C) 78 square feet
The error is that
![{x}^{y} - {x}^{z} \neq {x}^{y - z}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7By%7D%20%20-%20%20%7Bx%7D%5E%7Bz%7D%20%20%5Cneq%20%7Bx%7D%5E%7By%20-%20z%7D%20)
Instead, it should be 4⁴ - 4³ = 256 - 64 = 192.
Answer:
x = 2
Step-by-step explanation:
x + 5 = 2x + 3 ( subtract x from both sides )
5 = x + 3 ( subtract 3 from both sides )
2 = x