96 people are attending the concert.
Step-by-step explanation:
Given,
Number of children at concert = 12
This represents 12.5% of the people attending concert.
Let,
p be the total people attending concert.
12.5% of p = 12

Dividing both sides by 0.125

96 people are attending the concert.
Keywords: percentage, division
Learn more about division at:
#LearnwithBrainly
Letters used to represent values or unknown quantities that
can change or vary. One example of an algebraic expression
is 3x – 4. Notice the variable,
Answer:
an activity or purpose natural to or intended for a person or thing.
Step-by-step explanation:
: >
Well first off if you have a negative sign in front of the seven, DO NOT have a plus sign because it will be confusing. So y-7=13? , You add 7 to 13 and = 20, so y= 20