How to solve 7( 2x + 2 ) -9 ( -1 + 6x )

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Daryl factors the polynomial p(x)=x3+x2−26x+24 to rewrite it as p(x)=(x+6)(x−4)(x−1). which equations must be true? there may be more than one correct answer. select all correct answers. p(1)=0 p(−4)=0 p(−1)=0 p(6)=0 p(4)=0 p(−6)=0