30-(11+(18-(48/8×2))+7)+15
= 30-(11+(18-12)+7)+15
= 30-(11+6+7)+15
= 30-24+15
= 21
There are 31,536,000 Seconds in one year
In order to find out how much older you get, you just needed to divide it :
1,600,000,000 / 31,536,000
= 50,73 years older
hope this helps
Answer: yes is it a function
Step-by-step explanation:
A graph is a function when there is only one y value for each x value. You can also use the vertical line test. This example is a “quadratic function”.
Step-by-step explanation:

Then collect like terms
answer is x = 4