Relationship of the value of digits in 999,999,999

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

If you could answer these your a life saver

Ican interpret and represent the remainder in division calculations sensibly for the context (eg 27.4 in calculating average height in cm: $27.44 if it represents an amount of money) solve the following problems. 15) the wildlife park charges $25.50 dollars per person to enter their park if the park made $15096 dollars today, how many people entered the park? 16) ms adams plus 2,230 other keen runners ran a marathon: between them they ran 94817.5km. how many km did each competitor run?