eighth-grade students with a 3.0 gpa or higher were polled to determine how long students study each day.

a. students with lower grades are less likely to study as long.

c. the sampling method is systematic.

b. only eighth grade students were asked.

d. there is no bias.

identify the possible bias

What is 20+(5 x 2/5 )+ 3 show your work

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

If a line is defined by the equation y = 5x + 2, what is the slope?