Find the sum of the series and show your process for finding each term leading to the final sum.

∑5k=3(−2k+5)

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.