What is 10/8 divided by 1/4

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

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol