R is inversely proportional to A R = 12 when A = 12.5
A) workout the value of R when A = 5
B) workout the value of A when R = 9

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

1. what is the measure of ∠abc? what is the measure of ∠abd?

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest