It would be 21 because 7 times 3 equals 21 and the way you get that is 3 drawings per paper
Step-by-step explanation:
Let there be x blue ribbons

Answer:
The length of the building's shadow = 550.66 ft
Explanations:
The height of the Empie State Building = 1250 feet
The friend's height = 75 inches
The length of the friend's shadow = 33 inches

40/5= 8 is the mean..........
Say x is the number of weeks until their money is equal. Then, we can set up an equation.
400 + 25x = 250 + 75x
Subtract 250 from both sides
150 + 25x = 75x
Subtract 25x from both sides
150 = 50x
Divide by 50 on both sides
3 = x
That means the answer is 3 weeks.