There are 5 red, 4 green and 3 blue points on a circle. Find the number of those line segments which have end points of different colors.

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

What is r i 4.5+10r=-6.5 with work pls