Answer:
Ezequiel's final grade is 8
Step-by-step explanation:
The average (mean) of Ezequiel's grade is:

which rounded to the nearest unit is 8.
20 - k/15 = 17
20 - 17 = k/15
3 = k/15
k = 45
Answer:
A=5
Step-by-step explanation:
Hence the value of a and b are 5
Hello!
First you have to find the area of the bigger square
When it goes from the center to a corner you multiply the value by 2 to find one side
9 * 2 =18
Now you find the area
18 * 18 = 324
Now we find the area of the smaller region
4 * 2 = 8
Find the area
8 * 8 = 64
Now we subtract these
324 - 64 = 260
The answer is 260
Hope this helps!