x=4
Step-by-step explanation:
3/4x+ 4 = 7
Subtract 4 from each side
3/4x+ 4-4 = 7-4
3/4x = 3
Multiply each side by 4/3
4/3 * 3/4 x = 3 * 4/3
x = 4
$15.40 per mile
step-by-step explanation:
you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4