What does the r stand for in linear regression?

Determine the relationship of ab and cd given the following points

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

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