20 * 0.15 = $3 discount
20 - 3 = $17
Solution: the meal is $17
Alright, lets get started.
Suppose the speed to the ranch = x mph
So, speed to the ocean will be = (x-4) mph (because the speed was 4 mph less than the speed to the ranch)
Distance to the ranch = 888 miles
time moving to the ranch 
time moving to the ranch 
time moving to the ocean 
As per given in question, the 888 mile trip to the ranch took three times as long as the 280 mile trip to the ocean , means
Corss multiplying
Hence speed to ranch = 74 mph
Hence speed to ocean = 
mph
time for trip to ranch = 
hrs
time for trip to ocean = 
hrs
So, speed to ranch is 74 mph and trip time is 12 hrs and speed to ocean is 70mph and time is 4 hrs.
Hope it will help :)
Answer:
In statistics and econometrics, the first-difference (FD) estimator is an estimator used to address the problem of omitted variables with panel data. It is consistent under the assumptions of the fixed effects model. In certain situations it can be more efficient than the standard fixed effects (or "within") estimator.
First differences are the differences between consecutive y-‐values in tables of values with evenly spaced x-‐values. If the first differences of a relation are constant, the relation is _______________________________ If the first differences of a relation are not constant, the relation is ___________________________
it looks like its answers two, four, and five.
tell me how you did !
The y coordinate is written second so it would be 6
