(c) Find (dy)/(dx) given y = ((1 + 2x)/(1 + x)) ^ 2

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?

How many significant figures are there in the number 10.76?