An high-speed train can travel at 210 kilometers per hour. to the nearest whole meter, how many meters per second is this?

What situation is an example of an observational study

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared