- * + + MZ - .*2 (ET +
ж.
15.) + 2x + 2 + 2
17.) 4x + 3 + x - x
19.) 2+ + 3 = x - 1 -
= A +X-4 = x2 ('TZ
--A2 + x + x2
25.) 3y + 2 + 2y + 5
+​

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88

both equations and proportions are better.

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.