When two lines intercect, how many points do they have

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?