Two characteristics of oligopoly pricing that have frequently been observed are that
a. oligopolistic prices tend to be "sticky" or inflexible, and when the firms do change their prices, they tend to do so together.
b. oligopolistic firms’ prices tend to fluctuate a lot, and these prices tend to move together with each other.
c. oligopolists tend to practice a lot of price discrimination, and there tends to be a wide variance in oligopoly pricing.
d. oligopolistic firms’ prices tend to fluctuate a lot, and there tends to be a wide variance in oligopoly pricing.

oligopolistic prices tend to be "sticky" or inflexible, and when the firms do change their prices, they tend to do so together.

Explanation:

The two characteristics of oligopoly pricing which have been observed are that the oligopolistic prices tend to be inflexible or sticky, and when the firms alter their prices, the firms do so together.

Oligopolistic firms' prices fluctuate a lot; the prices move together with each other. In several oligopolist markets, prices remain inflexible for a long time, even when there are declining costs, they change.

you will have $2593.74 in 10 years if you set aside $1,000 at 10%

you will have $9321.91 in 20 years if you set aside $2000 at 8%

you will have $1469.32 in 5 years if you set aside $1000 at 8%

you will have $1296.87 in 10 years if you set aside $500 at 10%

you will have $239.66 in 15 years if you set aside $100 at 6%

you will have $4660.96 in 20 years if you set aside $1000 at 8%

muslims control the north africa during the period of 1500 up

to 1800. they made a barrier to prevent further european exploration from

entering the africa from the north. however, the dutch ware still able to move

toward the interior with having south africa as one of the routes leading to

the east for trading with asia.