We can Notice From the Figure that the Sides of the Triangle are Equal.
If a Triangle has all of its Sides Equal, then it is an Equilateral Triangle
We know that In an Equilateral Triangle all Angles are Equal to 60°
⇒ (2x - 4) = 60°
⇒ 2x = 60° + 4°
⇒ 2x = 64°
⇒ x = 32°
(1/10)m = (1/11)m +1/1100
(1/10 -1/11)m = 1/1100
(1/110)m = 1/1100
m = (1/1100)/(1/110) = 110/1100
m = 1/10
5(20) + 4y = 216
100 + 4y = 216
4y = 216 - 100
4y = 116
y = 116/4
y = 29.....so they sold 29 four-dollar yogurts + 20 five-dollar yogurts....for a total of 49 yogurts sold <==
(1,0) and (6,2) are not on the same line and I don't understand the last question
A.
We can rewrite the squared in two ways.
The first way is to rewrite it as a multiplication, this is:

The second way to rewrite the squared is by using the formula for this kind of product:

B.
Once again we can find the final result using each of the options given in part A, for the first option we have:

For the second option we have:

No matter which way we choose the answer for the squared is: