Answer:
B. 54 Joules
Step-by-step explanation:
The second one is correct. 66/300 = x/100
Giovanni purchased 20 adult tickets and 5 child's tickets.
Step-by-step explanation:
Let,
x = Adult tickets
y = Child's tickets
According to given statement;
x+y=25 Eqn 1
One adult ticket costs $14 and one child ticket costs $8, therefore,
14x+8y=320 Eqn 2

Putting value of x in Eqn 1;

Giovanni purchased 20 adult tickets and 5 child's tickets.
Keywords: Linear equations, Addition
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Procedures can also be called methods because they are like steps and rules that you can follow.
There is no graph I’m sorry I can’t help