Whats the domain of the following relation {[-1.5,3.5),(2.5,-1.5),(3,-1),(-1.5 ,-3.5)}?

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

What is the slope of the line shown below?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account