Investment a starts with $1000 and increases its value by $80 each week. Investment b starts with $2000 and loses $50 of its value each week. After how many weeks will the two investments have the same value? (please include the equations !! ty)

Jorge planted flowers in his garden he planted one row of 12 tulips and one row of 36 daisies george's friend kylie has a garden with 75 flowers in it kylie's garden only contains tulips and daisies. is it possible for kylie‘s garden she have the same ratio of tulips to daisies as george's garden?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?