David CHIPANDA

This page lists questions and answers that were posted by visitors named David CHIPANDA.

Questions

The following questions were asked by visitors named David CHIPANDA.

Answers

The following answers were posted by visitors named David CHIPANDA.

Cost of 20 copies= 20x$0.05 =$1 Cost of 80 copies =80x0.04 =$3.20 Cost of 100 and more copies =0.03(x-100) So our gradient. =0.03 Y=MX+b Total cost =gradient x no of copies+ constant 4.20=0.03(100)+b 4.20=3+b 1.2=b Y=0.03x+1.2