Formula for finding volume if cylinder

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

What is the difference between regular convex and concave polygons

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that