15. A particular compound decays according to the equation y = ae^-0.0736t, where t is in days. Find the half-life of this compound.

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle