Hi Imani
We need some more details before anyone can say how much would be to fix.
Anyway I have looked in ebay and the actual tablet is not too expensive so maybe will be better purchasing new one rather than fixing yours.
Here some links of different tablets:
http://www.ebay.co.uk/itm/iNOVA-7-Android-5-1-Quad-Core-Dual-Camera-1GB-8GB-WIFI-Tablet-PC-/172533898351?hash=item282bd25c6f:g:HLMAAOSwdGFYpQeY
http://www.ebay.co.uk/itm/KURIO-10-KIDS-ANDROID-TABLET-WITH-CRACKED-DIGITIZER-/371890634367?hash=item569668be7f:g:VPcAAOSwo4pYh5XC
Hope this helps