Aballoon rises into the sky at a speed of 4 meters per second. how long will it take the balloon to reach a bird flying 52 meters high? a. 13 seconds b. 14 seconds c. 15 seconds d. 16 seconds

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Nine more than four times a number is the same as one less than twice the number. find the number?

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap