Element X decays radioactively with a half life of 11 minutes. If there are 820 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 18 grams? y = a(0.5)^ t/h

22

step-by-step explanation:

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

i think it might be a but you might want a second opinion