Answer:
10
Step-by-step explanation:
X-4=18
X=18+4
X=22
10=M+7
M=10-3
M=3
4X=24
X=24÷4
X=6
-X=9
X=9×-1
X=-9
6M-5=1
6M=1+5
6M=6
M=6÷6
M=1
5A+7=4A
5A-4A=-7
A=-7
N/5=7
N=7×5
N=35
8=1/2X+6
16=X+12
-X=12-16
-X=-4
X=4
9.2 feet
Hope this helps.
Brainliest plz
![y = 30( \frac{1}{2}) ^\frac{x}{5730}](https://tex.z-dn.net/?f=y%20%3D%2030%28%20%5Cfrac%7B1%7D%7B2%7D%29%20%5E%5Cfrac%7Bx%7D%7B5730%7D%20)
Where x = the amount of time that has passed in years.