Four times a number, added to 9, is 37

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

15 points what is the end behavior of this graph? & what is the asymptote of this graph?