Which expression has a simplified expression of 5x - 12? 1.) -3(4 x - 4) - 7 x
2.) 3(4 x - 4) - 7 x
3.) 3(-4 x + 4) - 7 x
4.) -3(-4 x - 4) - 7 x
this is multiple choice

East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy

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

If the value of cos330°is√3/2 then find cos 165°.