Answer:
look at the picture i have sent
Answer:
4
Step-by-step explanation:
7x = x² - 8
=> x² - 7x - 8 = 0
use quadratic formula:
a = 1, b = -7, c = -8
x =
<em>(pls ignore the "A" I don't know why it's showing up)</em>
=> x =
=> x = 
=> x =
= 4 or
= -5 <em>(the answer is only 4 since it's asking for the positive solution)</em>
Answer:
16
Step-by-step explanation: becuase you have to round it think to urself is it closer to 15.9 or 16
Answer:
200%
Step-by-step explanation:
If $40 is 100% then multiply it by 3 to get $120