<h3>-1 is your answer </h3>
<h3>hope it helps :-) .</h3>
Answer:
x - 6
Step-by-step explanation:
divide number of mangoes bought by number of groups, that is

=
← numerator is difference of squares
cancel the factor (x + 3) on numerator/denominator
number in each group = x - 3
subtract 3 rotten mangos from group for good mangoes
good mangoes = x - 3 - 3 = x - 6
Answer:
x is add one y is divide in half
Step-by-step explanation:
Answer:
The expression for the perimeter of the rectangle is: 
Step-by-step explanation:
Perimeter of a rectangle:
A rectangle has length l and width w. It's perimeter is given by:

In this question:

So

The expression for the perimeter of the rectangle is: 
Answer:
(a) Theorem 9
Step-by-step explanation:
Any of the given theorems can be used to prove lines are parallel. We need to find the one that is applicable to the given geometry.
<h3>Analysis</h3>
The marked angles are between the parallel lines (interior) and on opposite sides of the transversal (alternate).
Theorem 9 applies to congruent alternate interior angles.