A classroom has 3 rows of desks . There are 5 desks in each row. how many desks are there altogether

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x