Answer:
2(2x+5)=8x-18
2x+5=4x-9
2x=14
x=7
MN=2*7+5=19
Step-by-step explanation:
Answer:

Step-by-step explanation:
The scale factor (C) is the ratio of corresponding sides of the two pyramids.
The ratio of the areas is the square of the scale factor.

The scale factor is
.
Answer:23
Step-by-step explanation:
When two lines are crossed by another line (the Transversal), a pair of angles
• on each of those two lines
• on opposite sides of the transversal
• but outside those two lines
are called Alternate Exterior Angles.
<span>When the two lines are parallel Alternate Exterior Angles are equal.</span>
Step-by-step explanation:
problem 10 is function
but problem 9 is not