Please help me! I will help you with a question if you need me to! (I'm only in 7th grade so don't expect me to be a genius)

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?