This is the most easier question anyone has asked yet. kill me
Answer:
4 [miles].
Step-by-step explanation:
1) the condition 'the entire trip took 5 hours' can be written as (where t_us - time spent upstream, t_ds - time spent downstream)

2) but the distance [D] upstream is equal the distance downstream, then the condition above can be written:

3) finally,

D=5*4/5=4 [miles].
You just have to go 7x28=[7x20]+[7x8]=196
SLOPE: 3 Y INTERCEPT: 3
The other answer is not correct!!!
Answer:
A. 1/2 inch:10 miles
Step-by-step explanation:
1/2*4.5=2 1/4
10*4.5=45