It takes zach 15 minutes to walk 7 1/2 blocks to the swimming pool. at this rate, how many blocks can he walk in one minute?

How do i do this activity, is appreciated

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?