Ms. donaldson earns $18.80 per hour for the first 40 hours she works in a week. she earns 1 1 2 times that amount per hour for each hour beyond 40 hours in a week. last week ms. donaldson worked 45.5 hours. how much money did she earn?

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

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17