Answer:

Step-by-step explanation:
Let
x ----> the number
we know that
The algebraic expression of the phrase "the difference of a number and 11" is equal to subtract 11 from the number or is equal to the number minus 11
so

........?.............-89
Answer:
There are 8 more girls
Step-by-step explanation:
If you divide 32 by 8 (since the ratio is 3:5 which is 8 parts (3+5)). You get 4.
Thus, there are 12 boys and 20 because 3*4 is 12 and 5*4 is 20. 12+20 is 32.