1/2(1/3y+1/3)=-1/2(y-5/2)

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!