If the equilibrium quantity demanded for a new sports watch is 900 truckloads of watches, and the equilibrium price is 70 then a drop in the price of watches to 40

It will not create a shortage, It will increase demand for those watches.

Reason:

If you see something you really want for $70, and there is a price drop to $40 tell me you wouldn't buy it for almost half off. The other guy doesn't understand Economics

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i think it would be a

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69