Which two activities are examples of data collecting? A. Asking voters whom they will vote for
B. Using the results of a poll to predict who will be the next president
C. Graphing the heights of basketball players
D. Weighing wrestlers

/is used for a fraction 1) if x = 2/3 and y = 3/4, what is the value of (x + y) (x/y) expressed as a common fraction? 2) what is the least positive integer greater than 1 that leaves a remainder of 1 when divided by each of 2, 3, 4, 5, 6, 7, 8, and 9? 3) the ponde family's powerjet pumps 420 gallons of water per hour. at this rate, how many gallons of water will it pump in 45 minutes? 4) kim's insurance company pays 80% of the cost of all prescription medication she purchases in a year beyond the first $250 worth of prescriptions. her prescriptions for this year cost a total of $570. how many dollars of this amounts will kim's insurance company pay?

Can some one me with these questions

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?