How do you work this problem? 5+1/7b=-2

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h

Multiply sixth of sixty six by a half of ten show step by step method