1.75 + 0.65m < = 10
0.65m < = 10 - 1.75
0.65m < = 8.25
m < = 8.25 / 0.65
m < = 12.69 miles <==
130 you multiply the left side by 13 to get the right side.
350(1+0.75)t (add the numbers)
350*1.75t (Calculate the product)
612.5 t
10+11+3
21+3
24
24/6
The mean is 4