Please help this was due

The conversion factor relating feet to meters is 1 ft=0.305 m. keep in mind that when using conversion factors, you want to make sure that like units cancel leaving you with the units you need. you have been told that a certain house is 164 m2 in area. how much is this in square feet?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Can you me find the missing length. i attached an image.