A group of grade 11 students decide to have a party at the end of the school year. In order to decorate the venue, they fill balloons with hydrogen gas and helium gas. Hydrogen filled balloons took 28.4 hours to go flat. How
long would it have taken the helium filled balloons to go flat?​

Which two editions of windows 7 support 64 bit cpus? choose two out of professional, business, starter, or home premium.

Technician a says that the radiator usually cools better if the front air dam is removed. technician b says that when a condenser has a leak it can be repaired easily with epoxy. who is correct?

1. you have a small business that is divided into 3 departments: accounting, sales, and administration. these departments have the following number of devices (computers, printers, etc.): accounting-31, sales-28, and administration-13. using a class c private network, subnet the network so that each department will have their own subnet. you must show/explain how you arrived at your conclusion and also show the following: all available device addresses for each department, the broadcast address for each department, and the network address for each department. also, determine how many "wasted" (not usable) addresses resulted from your subnetting (enumerate them).