Answer:
Break Even Point
Step-by-step explanation:
In Economics, this point is called the Break-Even Point. When all expenses of a starting business have been paid but still is too soon to profit. The first goal of a starting business is to reach the Break event Point at a given period.
1) (576*3/128) minutes
2) 81 men, 19 women. Total 100. 81/100 men. With 250 members, (250*81/100) men
3) (240*7/3) books in total
4) (92*7/2) total tickets
The answer is x²-8x+13=0
Here is how:
[x-(4+√3)][x-(4-√3)]=0
expand and simplify:
x² -(4-√3)x - (4+√3) +(4+√3)(4-√3)=0
x²-8x+13=0
Divide 9 from 5 and you should get the range