<h2>Solution :- </h2>
Let the number be "x" , then according to the question :
• 2x - 12 = -8
Further solving
→ 2x = -8 + 12
→ 2x = 4 .
→ x = 2
Answer:
<em>173 children tickets were sold and 201 adult tickets were sold</em>
Step-by-step explanation:
Let the number of child ticket sold be x
Let the number of adult ticket sold be y
If the total number of ticket sold is 374, hence;
x +y = 374 .... 1
Also if the ticket cost 3$ per child and 5$ per adult with total cost of $1524, this can be expressed as;
3x + 5y = 1524..... 2
Solve both equations simultaneously
From 1; x = 374 - y ...3
Substitute equation 3 into 2
3(374-y)+5y = 1524
1122-3y+5y = 1524
1122+2y = 1524
2y = 1524 - 1122
2y = 402
y = 402/2
y = 201
Since x = 374-7
x = 374 - 201
x = 173
<em>Hence 173 children tickets were sold and 201 adult tickets were sold</em>
<em></em>
Answer:
since the lines don't intersect there is no solution.
-(-9)=9 is true because a negative to a negative is positive
<h2>SETS</h2>

<h3>Answer:
<u>Letter </u><u>D</u></h3>
- The subsets of the set of animals are
- ∅, {bear}, {cat}, {sheep}, {bear, cat, sheep}, {bear, cat}, {bear, sheep}, {cat, sheep}
<h3>ADDITIONAL INFORMATION</h3>
- The symbol ∅ represents a empty set, that means there are no elements in the set.