Answer:
1. <ABC≅ <DEF - given
2. <GHI≅<DEF- given
3. <DEF≅<GHI- Symmetric property
4. <ABC≅<GHI- transitive property
5. m<ABC=m<GHI- definition of ≅ angles
Step-by-step explanation:
Answer:
Option c.
Step-by-step explanation:
Using the normal curve to approximate a sampling distribution:
For a sample size n and a proportion n, the normal curve can be used if:
and 
Option a:


So option a cannot be used.
Option b:


So option b cannot be used.
Option c:


So option c can be used, and is the answer
Option d:


So option d cannot be used.
The answer is given by option c.
The gcf of 15 and 70 is 5