How to find the Total Noise Power

A Cellullar mobile radio system has the following characteristics:

• Transmitted signal power at the base station = -90 dBm
• Forward link frequency band = 870-890 Mhz
• Duples Channel Bandwidth = 30 kHz
• Cluster size = 7 Cells
• The loss exponent factor = 3
• The signal-to-(noise + the total interference ratio) = 17 dB.
• Thermal noise power spectral density = 3.32 x 10^-16 W/Hz
• Receiver bandwidth = 40 kHz.

Assuming that all the interfering base stations are at equidistant from the desired base station, and the short noise and receiver noise at the mobile unit are negligible, determine:

1. The number of channels per cell
2. The co-channel interference (CCI) in W and dBm,
3. The total noise power ( This is most important )
4. The total interference power
5. The adjacent channel interference (ACI) in W and dBm.

Please somebody find this :(. I tried my best but I couldn't be able to calculate that total noise power.
Tx a million if you would help me !

To calculate the noise power at receiver input, it is convenient to use the basic equation:

P = kTBN

where P is the noise power in Watts, k is the Boltzmann constant, 1.38 E-23 Joules per Kelvin, T is the ambient temperature, 300 Kelvins, B is the channel bandwidth in Hertz and N is the noise factor, "times".
For an easier estimation, use the same equation in decibel scale: P = -174 + 10 log B + NF, here P is in dBm and NF in dB, B still in Hertz.

To find the noise power before the receiver demodulator (after the linear part of the receiver), add the appropriate gain in dB.