area of rectangle= 8*13=104m^2
base of the Triangle= 13 -(4+4)=5
area of Triangle = 5*6/2=15m^2
area of shaded shape =104-15= 89m^2
(f-g)(x) = 2x² + 1 - x² + 7 = x² + 8
Answer:
6 adults
Step-by-step explanation:
Let
x -----> the number of children
y ----> the number of adults
we know that
The ratio

so
using proportion
Find the value of y for x=(20-12)=8

therefore
6 adults
Answer:

Step-by-step explanation:
Write the quotient as a mixed number

we divide 77 by 6
1 2
-----------------------
6 7 7
6
-----------------------(subtract)
1 7
1 2
--------------------------(subtract)
5
Quotient is 12 and remainder is 5
we write mixed fraction as 
