1.5b+9 1.5b b =11 =3 =2 Step 1 Step 2 which step is wrong

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?