Can someone help please?

34

Step-by-step explanation:

(3x + 10) = (x + 52)

3x - x = 52 - 10

2x = 42

x = 21

--

= x + 52 + 3x + 10

= 4x + 62

= 84 + 62

= 126

--

y = 180 - 126

  = 34

I hope this helped! :)

28

step-by-step explanation:

8+8+6+6

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560