The product of 2.5 and a number minus 4.7 is 10.3

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

Which two undefined geometric terms always describe figures with no beginning or end?

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?