How do i take the sum of a frequences ?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.

The focus of a parabola is (-4,-5) and its directrix is y=-1 find the equation

Nour and rana are shopping for a christmas tree. they are deciding between 2 22 different types of trees (real and fake) and 4 44 colors for the ornaments (white, silver, gold, and purple). they each created a display to represent the sample space of randomly picking a type of tree and a color for the ornaments. whose display correctly represents the sample space?