Answer:
Total pictures = 84+12 = 96
roll of films = 96 / 24 = 4
she used 4 rolls
0.47 is the answer. Because it's in the middle of 0.43 and 0.50. I answered this on your last question =p
Answer:

Step-by-step explanation:

<u>Multiply both sides by 7:</u>


<u>Subtract 4 from both sides:</u>


<u>Divide both sides by 10:</u>


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First you need to give both fractions a common denominator lets say 40. So N would be 8/40 and Z would be 35/40, so Z collected more than N. All together they collected 43/40 which simplifies to be 1 and 2/40 which would again simplify to 1 and 1/20.
A. Is 2x
B. Is 2x+3
This shows the line and contracts it