Let

then you will have a^2-12a+36=0 and then you can just factor to find a
Answer:
The answer shoudl be 6.2 miles
Step-by-step explanation:
2:16
2.5:20
3:24
4:32
5:40
1.5:12
Answer:
86
Step-by-step explanation:
let four consecutive integers: n , n+1 , n+2 , n+3
n + n+1 + n+2 + n+3 = 342
4n + 6 = 342
4n + 6 - 6 = 342 - 6
4n = 336
divid by : 4
n = 84
but the third term is : n +2 so : 84+2 = 86