Me looking for my grades. Hm i can't find them

Which of the following is an equation of a line parallel to the equation y=4x+1?

Solve 2x − 1 = 11 for x using the change of base formula log base b of y equals log y over log b.

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?