-7x^2=(y+5)(y-5) 5y=15x

if (a, b) is a solution to the system of equations shown above and a>0, what is the value of a?

After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?