which product was lead removed from in the United States cell phones plastics gasoline computers electrical cords

The Clean Air Act Amendments of 1990 resulted in a final ban on leaded gasoline for most motor vehicle use, effective January 1, 1996

Find  the  area  of the  region bounded  by the  curves y equals  the  inverse sine  of  x divided  by 4,  y  =  0, andx  = 4  obtained  by  integrating  with  respect  to  y.  your work must include  the  definite integral  and theantiderivative.

When two vehicles meet on a steep road where neither can pass: the vehicles going downhill must back up or simply must yield the right of way so it can pass : )