The life expectancy of a lightbulb is normally distributed with a mean of 1975 hours and a standard deviation of 25 hours what is the probability that a lightbulb last between 1 950 and 2050 hours

Write the equation of the line in slope-intercept form m = 4 over 7, y-intercept (0,1)

2. 3/4 y = x-6; x + 4/3y = 1

X and y are supplementary angles. Y measures 88 what is the measure of X

A shirt originally cost $25 but is now discounted to $20. Find the percent of decrease

How many quarts are in 7 pints?

When Bailey sells $2,400 worth of merchandise, she earns $204 as her commission. What percent commission does Bailey earn?

If Mr. Deane's class, 60% of the students are boys. There are 15 boys in the class. What is the total number of students in Mr. Deane's class?

On Saturday, five members of an ecology club repaired the trail in a nature preserve. The mean number of hours that the club members worked is 7 hours. The hours that 4 members worked is 6, 7, 10, and 8.

Mark bought 29 gummy worms at the candy store. His friend Camille also bought some gummy worms. When they counted all of them together, Mark and Camille had 78 gummy worms. Which equation, when solved, will show how many gummy worms Camille bought?

Rosen 15 how many solutions are there to the equation x1 x2 x3 x4 x5