How can Laplace & Convolution theorem be applied to solve homework problems?

[miuw]

Please help me to solve these problems in my homework. I should deliver it tomorrow.

 

[LCKurtz]

Welcome to these forums miuw. You might want to read the rules. Homework should be posted in the homework section but, even so, you aren't going to find anyone here to do your homework for you. You need to show what you have tried.