Find hcf 3x² + 15x² and 2x - 50x​

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?

How do you solve a question like this?

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52