Return Data Based On Two Conditions

I have very limited vb experience and I believe it’s the only way I can do what I need to get done. I am working on creating an invoice template. I want the price to populate based on two conditions. The two conditions are invoice line quantity and month. Let me provide data ranges. The user will enter a quantity for each invoice line moving down B17, B18, B19, B20 etc up to 24 lines. (through B40). The user will enter a current date in F13. Away from the main body of the invoice:

Range T5 thru T16 will be pre-populated with each month of year 2007. So T5 = 1/1/2007, T6 = 2/1/2007, T7 = 3/1/2007 etc.
Range U5 – U16 will be pre-populated with the line price for each month if the line quantity is less than 10
Range V5 – V16 will be pre-populated with the line price for each month if the line quantity is 10 or more

The price should autopopulate in G17 - G40 where a quantity is placed in the corresponding column range B17 - B40. The number of lines varies per invoice so I'm setting the template up with sufficient lines. As an example, the price should populate for each invoice line beginning in G17 to correspond to the month entered in F13 and quantity entered in B17 based on the corresponding month in T5-T16 and the price in either U5-U16 or V5-V16 given the quantity. So if the Month in F13 was February and the quantity in B17 was 25, the price that populates G17 would come from V6. If the Month in F13 is March and quantity in B17 is 5, the price that populates G17 would be from U7. I just don’t have enough experience to write this myself.