If f is the function defined by f(x) = x^2 - 1 / root x - 1, then lim f(x) x->1 is

Carlos has 4/5 of a tank of fuel in his car. he uses 1/10 of a tank per day. how many days will his fuel last?

Aright triangle has an area of 18 square inches. b: if the triangle is not an isosceles triangle, what are all the possible lengths of the legs, if the lengths are whole numbers. answer !

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130