265.22 or 265 2/10 or 265 1/5
Answer:

Step-by-step explanation:
Given that:
The population mean μ = 12
By computing the null and alternative hypotheses, the correct set of hypotheses for this test is:

This is a two-tailed test.
3x-5 < ( with line underneath the < sign) 21
Answer:
1/4 is 25% or 0.25
Step-by-step explanation:
Make a right angle, and use your compass to add an additional 45 degrees