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 monthly residential electricity bill in Indiana is $105, which ranks 27th in the U.S. This average monthly residential electricity bill in Indiana is 1.87% less than the national average monthly bill of $107. Average monthly residential electricity bills in the U.S. range from approximately $75 to $203.