Which pair of expressions has equivalent values? O 1^13and 1^15
O 6^1 and 9^1
O 7^8 and 8^7
O 9^2 and 4^3

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

Ineed to know the answer right now! !

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15