I need help with all of my math by tomorrow and I need to know if it’s all correct and the top 2 are supposed to be done in standard form

Kinu wants to buy topsoil for a section of her garden that has the dimensions shown in the figure. each bag covers 2 square yards. how many bags of topsoil should kinu buy? explain how you found the answer.

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle