The lengths of 1-year-old female children can be described using a Normal distribution with a mean of 29 inches and a standard deviation of 1.2 inches. Using the 68 - 95 - 99.7 rule, what percent of 1-year-old female children are longer than 31.4 inches?

32%

5%

2.5%

0.0015%

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?