For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 15 hours. Mr y owns one of these computers and wants to know the probability that the length of time will be between 50 and 70 hours.

By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases by 40%.

What are the three stages of volcanic activity? a. active, magma, lava c. extinct, eruption, explosive b. eruption, quiet, explosive d. active, dormant, extinct

If aaliyah bodyslammed her uncle without damon dash's and he just stood there petrified looking like a down syndrome ringworm, how much diamonds @riaa completely sprinkle covered over her feet before bowing down to congratulate her on owning all rights to the both of their entire careers merged together onto her resumes?