By what will the fraction increase if its numerator is decreased by 10% and denominator decreased by 50%?

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?

Jenny made a scale drawing of a city. the scale she used was 5 inches = 1 yard. what is the scale factor of the drawing?