Ryan bought a new phone case that was originally $80, it is now on sale for $60. What was the percentage change?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

What graph represents an even function