Which of the following statements about combinations is true? A. The order matters in some combinations but not in others.

B. Combinations never happen in real life.

C. Combinations are difficult to understand.

D. The order does not matter in combinations.

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

Plz i beg u asap ! what is the equation of this graphed line? enter your answer in slope-intercept form in the box.

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.