Answer:
surface area of rectangle= 2[(l+w) +(l+h). +(w+h)]
hope it helps
It's the inverse operation of squaring that number. It's an odd definition to explain lol
Remember that exponentioal rule
x^m times x^n=x^(m+n)
therefor
7^4 times 7^-6=7^(4-6)=7^(-2)
remember the other rule
x^-m=1/(x^m) so
7^-2=1/(7^2)=1/49
answe ris A
12xy i think lol :) hope that helps a bit