A right triangle shown below what is the value of b 13mm and 12 mm

(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

Let w=23 . what is the value of w + 45 ?

A(t)=728(1+0.04)^t how much money did aditya originally invest