Charles asked his teammates how many hours they practiced swimming during the week. he recorded his data in the table below and used the shaded columns to calculate sample means. what is the range of the values for the sample means?
a.1
b.2
c.3.75
d.4.75

What is the average rate of change for this function for the interval from x=2 to x=4 ?

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.