Element X is a radioactive isotope such that every 27 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 7900 grams, how much of the element would remain after 12 years, to the nearest whole number?

Find the vertex of the function given below y=x^2-6x+1

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.

The tax rate on harriet walker's 80,000 vacation home is 20 mills. the property is assessed at full value. how much will harriet walker's pay in taxes this year