Three friends went running. The table below shows their last 3 lap times.

Name
Lap 1
Lap 2
Lap 3
Paula
16 mins 20 secs
15 mins 50 secs
14 mins 40 secs
Kate
16 mins 30 secs
16 mins 20 secs
15 mins 40 secs
Sam
16 mins 10 secs
16 mins 10 secs
15 mins 30 secs

What is the range of these lap times?

minute(s) second(s)

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?