Answer:
the answer is c
Step-by-step explanation:
-then+
Solve the lower equation first
+12 on each side
7x=51
divide by 7
x=51/7
then use that to solve the upper equation
Answer:
15(5)+3=78
21(5)+4=109
78+109=187
Step-by-step explanation:
Step-by-step explanation:
Q1. 1,075÷12.5 =8
So Therefore 1g of medicine cost 8 naira
Q2.645÷42=15.3
so therefore 1 hour cost 15.3 naira
Answer:
I can't tell u the answer but brackets always comes first.