Answer:
2.7 litres of solution
Step-by-step explanation:
Answer:
the answer is in the question
The correct answer would be b) (12 + 3x)x
Answer:
S=157
Step-by-step explanation:
an= a1+(n-1)d
a2=80+(2-1)(-3)
a2=80-3
a2=77
Sn=(a1+an)*n/2
S2=(80+a2)*2/2
S2=(80+77)*1
S2=157
