Will give brainliest to who ever answers

Step-by-step explanation:

1. 2b-5=7   2b=7+5  ,2b=12 / 2   b=6

2.3z+2=8 3z=8-2 3z=6/ 3        z=2

3. 4x+1=13 4x=13-1 4x =12/4     x=3

4. x/2 -8=2 x-16=4 x=4+16    x=20

5 f/3 +5=6 f+15=18 f=18-15      f=3

m/4-3=0 x4 m-12=0              m=12

the answer is su.k.my? ? co.kc

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