Assuming 69dB free space loss (Hmm...)

Q70: Assuming 69dB free space loss.

Tx – cable loss + antenna gain – FSL + antenna gain – cable loss = Rx
TX = Rx + cable loss – antenna gain + FSL – antenna gain + cable loss
Tx = -45 + 4 -2 +69 – 2 + 4 = +28dBm