help please i cannot solve this.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

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

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid