Dennis thought of a number. he adds 0.5 to that number and then multiplies the new result by 4. he then subtracts 2 and divides the number by 2. his final answer is 48. what number did dennis start with?

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

Which best explains why this triangle is or is not a right triangle ?