Ineed to know the answer and the steps on how to work out the problem.

Let v be the speed of the slower plane in mph.
Then the speed of the faster plane will be (v + 55) mph.
the closing speed of the two planes is the sum of their speeds:
v + v + 55 = 2v + 55


Cross-multiplying, we get:
6v + 165 = 1965
6v = 1800
v = 300
The speeds of the planes are 300 mph and 355 mph.

Iwould say false, not positive but if prices went up for both stores, technically there will be less buyers?

31/6= 19/6 19/6 *1/7=19/42