In parallel pipe system originating and terminating in common junctions

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?