First, you need to collect the like terms; 7x + (-20 - 90). Next simplify; 7x - 110
answer; 7x - 110
Similar, they have the same angles but different sides.
Congruent is same sides, same angles.
The other 2 just ignore.
The answer is similar.
To solve this problem you must apply the proccedure shown below:
1. The perimeter of a rectangle can be calculated with the following formula:

2. The width is:

3. Now, you must substitute the values into the formula for calculate the perimeter:

Therefore, the answer is: 
Standard form
expand first then add
f(x)=3(x-7)²+5
f(x)=3(x-7)(x-7)+5
f(x)=3(x²-14x+49)+5
f(x)=3x²-42x+147+5
f(x)=3x²-42x+152
A is answer
<u>Given:</u>
The width of the snack box is 
The length of the snack box is 
The height of the snack box is 4 inches.
We need to determine the volume of the hamsta snack box.
<u>Volume of the box:</u>
The volume of the box can be determined using the formula,

where L is the length, W is the width and H is the height of the box.
Substituting the values, we get;

Simplifying, we get,


Thus, the volume of the Hamsta snack box is 15 cubic inches.