Answer:
90%=9/10=0.9
0.9=90%=9/10
900%=900/1000=0.9
9/10%=0.9=90%
Step-by-step explanation:
The foreign exchange rate is a rate at which one currency is exchanged for another, and it exists because not all currencies are worth the same. In short, money of one country is worth more than money of a different country.
Aaaaaaaaaasaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Standard form of a quadratic f(x) = ax^2 + bx + c
In a quadratic function you find the vertex using the formula x = -b/2a; once you find the x value, substitute it into the equation and solve for y.
To know if a parabola opens up or down you look at the coefficient of the x^2 term. If it is positive, the graph opens up; if it is negative, the graph opens down.
