What two numbers multiply to get -140 and adds to get 13

Why do interests rates on loans to be lower in a weak economy than in a strong one

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

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.