In both types of reactions, new substances are formed and there are changes in energy. However, endothermic reactions absorb energy, whereas exothermic reactions release energy. Reteach Change the boldface sentences into questions, and call on students to answer them.
The average monthly cell phone bill has soared in recent years to well over $100. A study earlier this year found that Verizon (VZ) was the most expensive carrier, with an average customer bill of $148 a month. Sprint (S) and AT&T (T) weren't that far behind, and T-Mobile (TMUS) was the least expensive of the Big Four carriers at $120.
The average person makes or receives 8 mobile phone calls per day. That is roughly 2.4 billion phone calls across the 300 million cell phone user in the U.S. The average mobile phone user in the U.S makes 250 phone calls per month or 3,000 phone calls per year.o if the average person drops 12 percent of their calls per month you are paying $7.08 for calls that should be if your carrier refunded the dropped call. Carriers should be refunding $85 per year to customers on average if dropped calls were refunded as credits.