Answer:
3
Step-by-step explanation:
Hello,

Answer:

Step-by-step explanation:
The given expression is 
We want to find the value of h(-9).
We substitute r=-9 to obtain:

We multiply out to obtain:

We simplify the denominator to obtain:

This is the same as:

SAS because its is side angle side for both of them
Answer:
Rosa ran
of the total distance between her house and her school.
Step-by-step explanation:
Distance between Rosa's house and her school =
miles ≈ 4.5 miles
She ran distance = 3 miles
Therefore, fraction of the total distance between her house and school she run = 
= 
= 
= 
Therefore, Rosa ran
of the total distance between her house and her school.
9. 7a^2 + 5ab - 2b^2
10. m^3n - 3m^2n^2 + 8mn^3
the trick is to go from smallest to biggest