En este año lectivo, la Institución cuentacon 1980 mascarillas para el retorno seguroa las aulas . Si esa cantidad es el triple demascarillas que había hace dos años.¿Cuántos mascarillas había hace dos añosen la institución?

Given that (x-3) is a factor of f(x)=x^3+ax^2-x-6, find a and hence the number of real roots or the equation f(x)=0

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?