90 POINTS!! Subtract 1/2h -1 from 3/4 h +4

A.1/4h+3

B.-1/4+5

C.1/4h+5

D.-1/4h+5

Help me plz

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Ineed someone to me answer my question i have to have this done and knocked out