Ineed this answer!

a submarine was 144 feet below sea level. a shark was hovering at a constant depth above the submarine. the submarine’s depth was twice the depth of the shark. which integer expression describes the position of the shark in relation to sea level?

a) –144 + 2

b) –144 ÷ 2

c) 2 (–144)

d) 144 ÷ 2

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.