Given the proportion below, what ratio is equivalent to w/5? x/w = y/5 a: x/y b: y/x c: 5xy d: (y+5)/5

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

If the measure of xyz is 81 what is the measure of yz

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0