John is six years older than bill. two years ago john was twice as old as bill. how old is john now.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96