Karen exchanged BDS$2000 and received EC$2700. How much is the value of one BDS$ in EC$

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain