Its a multiplication by -3 on each term, so I think you're gonna answer is by r=-3, maybe?
1.3 bc 8 miss 3 equals 24
30 is 50% of 60 because 50% is a half
<span>In order to determine the total number of errors that were made by the bar code scanner, we first have to calculate how many total scans were made. Because there were six items scanned 1,000 times each, there were 6,000 total scans made. Next, we have to add up the total number of errors made by each item (36+14+21+39+11+2). As a result, there were a total of 123 errors made during the 6,000 scans.</span>
ANSWER

EXPLANATION
The given expression is

We remove the perfect squares under the radical sign.

We can now take square root of the perfect squares and simplify them further.

This simplifies to:

This further simplifies to:
