What is the percent of change from 74 to 35 round to the nearest percent

Which expression is equivalent to the expression shown?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle