Why do people keep taking down my questions??
All Im Doing Is ASkInG ReASoNAbLE QuEsTiONs.

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?

Can someone me with this? i’m not sure what to put for my equations.