Mark is a coin collector. At the first store he went to, he bought 3 sets of 4 coins. At the second store, he bought 5 sets of 3 coins. He then decided to sell 5 coins. He totaled his number of coins, and then gave his brother 8 coins. How many coins does he have left? can you give me the anwers

2÷6+1/2 to the second power plus one

10% of 1,900,000. show me how you got the answer

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.