Answer:
f(10) = 3(10) - 2 = 28
Step-by-step explanation:
3+2 = 5
80/5 =16
16 x 3 = 48
16 x 2 = 32
Answer= 48:32
I think this is right
Answer:
left one on 3rd row
Step-by-step explanation:
using the rules of exponents/ radicals
= 
= ![\sqrt[n]{a^{m} }](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Ba%5E%7Bm%7D%20%7D)
given

= 
= ![\frac{1}{\sqrt[7]{12^{4} } }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%5B7%5D%7B12%5E%7B4%7D%20%7D%20%7D)
Answer:a
Step-by-step explanation:
2x +2(x-12)=340
2x+2x-24 = 340
4x=364
x = 91
91-12 = 79 mph for eastbound train