Aradioactive element has a half life of 50 days. what percentage of the original sample is left after 60 days

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)