Its two squares, so you need to start by finding the perfect roots that go into 117. If you need more help after that just comment :)
Basically use pythagorean theorem to solve :))
Answer:
The original cost of the scarf was $40.
Step-by-step explanation:
First find the cost of single baseball card pack.
Cost per pack= $12/4 = $3
Now number of packs he can purchase for $21= 21/3 = 7 packs
Answer: 7
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
Sample size = 865 = n
Number of voters favor approval of an issue before the legislature = 408 = x
So, 
At 95% confidence level of significance, z = 1.96
So, confidence interval would be

Hence, option 'c' is correct.