How much pure aple syrup should be added to 48 tablespoons of a 45% solution to make a 60% solution

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

With alll of except for the 2 that i did already

The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2