In this question, some of the data is missing so its a complete question and the solution can be defined as follows:

By given question, calculating equations are:

Putting the equation (c) value in the equation (a) to calculate value:

Putting equation (c) and (d) value into equation (b):
Putting m value into equation (c) and equation (d) to calculate its value:
Calculating the s value:
Calculating the r value:
So, the final value of "m, s, and r" are "900, 1800, and 5800".
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Answer:
A i think
Step-by-step explanation:
I believe that you would just multiply 2.35*5 and that would be your answer.
=11.75
Answer:
52 32- cent stamps and 26 13-cent stamps
Step-by-step explanation:
Let x be the 32-cent stamps and y be the 13-cent stamps then...
x=2y
32x+13y=2002 (note that $20.02 is 2002 cents)
We can solve using substitution (substitute 2y for x)
32(2y)+13y=2002
64y+13y=2002
77y=2002
y=26
x=2(26)
x=52
She bought 52 32-cent stamps and 26 13-cent stamps.
B: answer(90) that’s your answer