Look at the sets below.
{3, 6, 9, 12, 15} {1, 6, 12, 18, 24}
Which of the following shows the intersection of the sets?
A.
{6, 12}
B.
{3, 6, 9, 12, 15)
C.
{1, 3, 6, 9, 12, 15, 18, 24}
D. {1, 6, 12, 18, 24}

Ineed with number 17 i don’t get it at alll

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years