HELP Unit 7: Polygons & Quadrilaterals Homework 4: Rhombi and Squares. I need answers for #4-7!

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

Classify the following triangle check all that apply

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left