Please help me asap!!

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

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

In terms of x, find an expression that represents the area of the shaded region. the outer square has side lengths of (x+5) and the inner square has side lengths of (x-2), as shown. area: a1 x + a2 square units submit