Answer:
8.3x+4
Step-by-step explanation:
Mike should bike a total of 11 miles on Sunday
3x+8.5 =2.5x + 14.5
subtract 2.5x from each side
.5x + 8.5 = 14.5
subtract 8.5 from each side
.5x =6
multiply by 2
x =12
at 12 weeks they will be the same height
Choice B
11/12 is .92 and 13/14 is .93 multiply them together and get .85 roughly
