Answer:
1.65 grams
Step-by-step explanation:
19.54 - 17.89 = 1.65
(5.2+3.1)+7.4=5.2+(3.1+7.4)
(8.3)+7.4=5.2+(10.5)
15.7=15.7
hence,L.H.S =R.H.S PROVED
Answer:2.5 I just took the test
y=13
5+13=18