Mary and mia are assembling floor lamps. mary can assemble 10 lamps per hour. mia can complete 12 lamps per hour. together, they assemble 600 lamps. let x = hours worked by mia and y = hours worked by mary. if mia works for 25 hours, how many hours did mary work?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?

Which of the following choices gives you a slope of 3?