in group 1 there are 8 students who play tuba there are 1/2 as many students playing the clarinet as the flute write an expression that shows how to find the number of students who play each Instrument. how many students play the clarinet ​

Can someone pls ! pls answer all. no explanation needed..

If the discriminant if a quadratic equation is 4 which statement describes the roots?

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