Iwant to double check on this problem its m+0.23=1.2 m=0.97

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

Ineed someone to me answer my question i have to have this done and knocked out

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?