exam Maths Puzzle Numerical Ability

A cellular phone company offers a contract for which the cost C in dollars, of T minutes of telephoning is given by C = 0.25(t-300)53.95 where it is assumed that t >= 300 minutes.

Read Solution (Total 0)

exam Other Question
if f(x)=log((1+x)/(1-x))then prove that 2f(x)=f((2x)/1+x2))
sir x2 is x squre can you please help me: (((Graph the function y=f(x)=x^2)))