Answer:
the brackets signify to multiply both the numbers
3×3=9 not 3z
hope this helps you
Answer:
cant really see it
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given







Required
The weighted average
To do this, we simply multiply each score by the corresponding worth.
i.e.

So, we have:

Using a calculator, we have:

--- approximated
9r
Explanation:
4r + 9r = 13r
13r-11r = 2r
2r + 7r = 9r
. . Hmmmmmmmmm, I wonder what the answer could be XD