2.4,1.6,3.2,0.3,1.5 each new piece of data is doubled calculate the mean

Which expression is equivalent to 2^4y^3

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c

Which of the following statement about pascal's triangle are true?