If $a$ and $b$ are positive integers such that $\gcd(a, b)=210$, $\mathop{\text{lcm}}[a, b]=210^3$, and $a

Step-by-step explanation:

Given

Required

The product of a and b --- missing from the question

To do this, we make use of the following formula:

So, we have:

Using the product law of indices, we have:

This means that the product of a and b gives

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

because they could drop even lower..