Hey, i have some questions on an A-Level piece of maths that i cant seem to figure out the answer to:

1. Make t the subject in P=Poe^(to the power of)0.1(t-3)

2. Sketch the graph of y=|2x+3| << i've done that bit
Hence, or otherwise, solve the equation |2x+3| = 2-x <<< need that bit

3. Find the integral of xsin2x dx

If anyone could help me with any of these i'd be so grateful