A national survey found that 48% of all teenagers have an iPhone. You decide to survey 3 teenagers in your school at random. Draw a tree diagram to illustrate the possible outcomes.
a. P(all 3 own an iPhone) =
b. P(none own an iPhone) =
C. P( aleast one owns an iPhone) =

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3