Can somebody me answer this including the directions and fill in the blanks?

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

The ruiz family is exchanging euros for us dollars. the exchange rate is 1 euro equals 1.35261 usd. since the ruiz family knows that usd are stated to the nearest hundredth of a dollar, they used the conversion ratio

Speed is the ratio of the distance of an object moves to