Is 3.2 meters equal to 320 millimeters?

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

If f(x)=3 over x+2 - square root x-3 then f(7)=

Landon drove 103.5 miles on tuesday 320.75 miles on wednesday and 186.30 miles on thursday for work his company pays 0.07 $ for each mile he drives he expects to be paid more than $40,000 is he correct explain