PLS HELP I DO NOT UNDERSTAND THIS I WILL MARK YOU BRANLIY

What is the value of (3 × 10^-2)?

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?

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Simplify the expression 10/11(22z) + (a+5) -1