Answer:
Yes, this is a valid inference because she took a random sample of the neighborhood.
Step-by-step explanation:
As her survey was non bias and completely random and she found that 15% of the families would participate in the event. She claims that 15% of the neighborhood families would be expected to participate in the sports event. So, yes, this is a valid inference because she took a random sample of the neighborhood.
M is a midpoint of BC so:

Length of MA:

Length of NB:
Answer:

Step-by-step explanation:
Given

Required
Find 

Express 32 as an exponent

By comparison:


So:

Uriah has 70 dollars and cassius has 35
Answer:
8
Step-by-step explanation:
8 x 2 = 16
8 x 7 = 56
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