7/5 и 3/2 сравните дробь

закончите уравнение реакций поставьте коэффициенты . а) ...+ ... -- KCL + H2

Б) ...+...--KCL + H2O

1. Найдите сумму геометрической прогрессии 9; 3; 1; ...

Английский! Оборот there is/are в Past Simple и Future Simple! переделайте предложения в Past Simple и Future Simple: 1) There is no coffee in my cup. 2) There is no exact objective/ 3) Is there much work to do at home/ переделайте предложения согласно образцу: There is some problem in my work - I have some problem in my work. 1) There is no key in my bag/ 2) There are no suggestions on his problem. 3) There is no possibility to reduce your expenses. 4) There are no flowers in our room. 5) There is no reason for me to disagree with your statements.

Представьте в виде многочлена: a) (y-1)(y^2+2y-1) б) (z^2+3z+2)(z-5) в) (a+b)(a^2-ab+b^2) г) (x^2-xy+y^2)(x-y)