Please answer it as soon as possible.

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

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities