Can you show us the triangular prism to help you
-6.25 is the value of p. First distribute the 8 to the parentheses and then solve the equation
That is true. it is part of natural numbers.
Answer:
11 years old
Step-by-step explanation:
If four brothers have the average age 6, then the sum of their ages is

years.
Let x years be the age of sister. If four brothers and their sister have the average age 7, then

Multiply this equation by 5:

The sister is 11 years old.
Step-by-step explanation:
its 60