Which pair of variables can’t be represented on a scatter plot? the total number of hours a group of employees works and the number of employees

B.
the heights and weights of a company's employees

C.
the hemoglobin levels and blood types of patients in a hospital

D.
the hours spent watching TV and the hours spent working on a laptop

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

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.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same