Answer:
3 markers. The equation is 15-3x.
Step-by-step explanation
You multiply the number of friends by the number of markers and then subtract from 15. You create the equation by taking the original number of markers you had and subtract it from 3 times whatever number.
[6 , 18]
Step-by-step explanation:
7
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16 managers
Here, we want to calculate the numbered managers at the park
From the question, 4% of the 400 are managers
Thus;
4/100 * 400 are managers
= 1600/100 = 16