Number 3 / last one is -49 hoped I helped you
Answer is 199 because it adds up by 8 after 12 at the beggining
Numbers 5 and over round up to the nearest 10. Numbers like 164 would found to the nearest 10 of 160 because the last number (unit) is below 5, so it rounds down. I hope this helps but you can find tutorials on google good luck!
3(5b+1)(5b-1)
hope it helps
Step-by-step explanation:
Let f be a function having domain in the set X, and range in the set Y. Then f would be invertible if there exists a function g having domain Y and range X, such as:
In other words, the function 
is applied to an input x, and gives an outcome of y, then its inverse function, let say 
, can be applied to y to give the result of x.
In other words,
y = f(x) if and only if x = g(y)
For example, considering the function
the inverse is:
