Answer:
56
Step-by-step explanation:
8 times 7=56
For this case we propose a system of equations:
x: Let the variable representing the number of children in the concert
y: Let the variable representing the number of adults at the concert
According to the assistance we have:

According to the cost we have:

Substituting the first in the second equation we have:

Thus, the concert was 375 adults.
On the other hand we have:

Thus, the concert was 1125 children.
In total they were:
people
ANswer:
The concert was 1500 people
Answer:
D) 496.25 ft³
Step-by-step explanation:
V = πr²h
3.14 × 14² × 72
Answer:
It is arithmetic and it has a common difference of -99