Answer:
x = 18
Step-by-step explanation:
Given two intersecting chords inside a circle, then the product of the parts of one chord is equal to the product of the parts of the other chord, that is
7x = 21 × 6 = 126 ( divide both sides by 7 )
x = 18
The answer to that is 7 but i dont get the last part
12/5 = x/3. Cross multiply
12*3=5x
36=5x divide both sides by 5.
7 1/5 hours