A lil help please T. I.A

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

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

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year