It’s either Option 1 or 4
Answer:
$1530
Step-by-step explanation:
First of all, it is required to convert 35g of gold into ounce.
Since,
1 oz = 28 g
or, we can write,

Now, for 35 g of gold, we can write,

Since, local jewelry will buy at $ 1224 per oz, and we have 1.25 oz of gold, so,

2 and the 4 needs to add subtract too much
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.