The question gives you 3.5 hours for the first one, $14 for rental(which you solved in the previous problem) for the second one, + $7(also solved in previous problem) for the third one. Solving the equation will give you 56 for the fourth blank. Solving and dividing by 2, you get 28 for the fifth blank.
Based on the definition of congruent angles, the value of x is: 23.
<h3>What are Congruent Angles?</h3>
Congruent angles have the same measure. Examples of angles that are congruent are:
- Alternate interior angles
- Alternate exterior angles
- Corresponding angles
Thus:
(5x + 16) = (6x - 7) -- congruent angles
Combine like terms
5x - 6x = -16 - 7
-x = -23
x = 23
Therefore, based on the definition of congruent angles, the value of x is: 23.
Learn more about congruent angles on:
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CosOsinO - 0.5 cosO = 0
cosO(sinO - 0.5) = 0
so cosO = 0 , sin O = 0.5
cosO = 0 gives O = pi/2 , 3pi/2
sinO = 0.5 gives O = pi/6, 5pi/6.
Factoring an expression involves rewriting the expression in simplier form
The factored expression of
is 
<h3>How to factor the expression</h3>
The expression is given as:

Factor out 5x from the expression

Factor out y^2 from the expression

Hence, the factored expression of
is 
Read more about factorized expressions at:
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I hope this helps. If you are still confused just tell me and I’ll explain it again