<u>Final Answer:</u>
x = 20
<u>Step-by-step explanation:</u>
we'll be using the pythagorean theorem method, in this triangle the missing letter is a.
formula: 
a = x
b = 21
c = 29
a = 
a =
(note: 29² = 29 × 29 = 841 and 21² = 21 × 21 = 441)
a = 
a = 20
x = 20
Answer:

Step-by-step explanation:
- Option A
tells us that: When we add 5 to a variable x, we get 20. As it has a unique value for x and is completely equal to it(i.e. 15), It is an equality.
- Option B
tells us that: A variable x equals to 5. Hence, as x is unique for 5 and is wholly equal to it, it's an equality too. - Option C
tells us that: A variable x isn't 5 but lesser than it. As we cannot equate it to 5, nor we are given the nature of the variable x, it is an Inequality. - Option D
is an expression; It can't be called an equation or an inequality unless we relate it with another expression.
Answer:
Another 20 feet would be +4.40$
so the total would be $22
Step-by-step explanation:
17.60/4 because 80/20 is 4.
Answer:
42.75
Step-by-step explanation:
area of one piece, length x width: 3 x 4 3/4
14.25
area of 3 pieces: 14.25(3)= 42.75
Answer: 37.5
Steps right it as a decimal:0.375
Calculate: 37.5/100
Solution:37.5