Multiply 16 times 16 and repeat it the number of exponents.Do the same with the others and then you add them and find x.
Answer:

Step-by-step explanation:
Slopes are negative reciprocals when two lines are perpendicular

Equation of straight line in point-slope form is given as

Here 

Answer: 120 cartons
Step-by-step explanation: Since, the grocery clerk displays 15 cartons at the base of the triangle and one at the top. Therefore, one carton is reduced at previous step and so on. Since, this series is in arithmetic progression. Therefore, 120 cartons are needed for the complete display.
Answer:
Interior = 60°
Exterior = 120°
Step-by-step explanation:
A triangle has 180° in total.
We have 2 angles, 70 and 50
70 + 50 = 120
For Angle U, we do 180-120 = 60
So the interior angle is 60°
A line is straight and is 180°
With angle U being 60°, and being on a straight line, 180-60 = 120
So exterior angle is 120°