11. Error Analysis Ahmed uses the following explanation to prove that a figure is a
parallelogram. What is Ahmed's error?

This is geometry. could anyone ? i can't fail this class. my grade is quite low already.

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.