1. if x =-3 calculate the value of 2x squared +x
2. solve 3x-3=x+5
3. solve 5x+4=3

Really need on these. i have no idea what to do

Write the fraction or mixed number and the decimal shown by the model

Darian wants to build a regulation size pool table that is 9 feet in length. he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table