The average life of a lightbulb is 2500 h, with a standard deviation of 200 h. suppose that 10,000 bulbs are purchased to equip a new building. assume that the lives are normally distributed. how many of the light bulbs would be expected to burn out after just 1800 h?

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?

How do i i solve this equation? -18 = x/3 + 3

:i need some real : a store sells shirts to the public at one pricing scale and wholesale at another pricing scale. the tables below describe the cost, y, of x shirts. (after tables) how do the slopes of the lines created by each table compare? the slope of the public table is 3/4 of the slope of the wholesale table.the slope of the wholesale table is 3/4 of the slope of the public table.the slope of the public table is 12 times greater than the slope of the wholesale table.the slope of the wholesale table is 12 times greater than the slope of the public table.