A day care center recorded the height, in centimeters, of ten toddlers who attend their day care. The heights are shown.

{63, 71, 69, 68, 71, 75, 66, 65, 71, 72}

What is the range in the heights of the toddlers?
A) 9
B) 11
C) 12
D) 13

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

What is the rate for one gallon of gasoline