For questions 2 – 4, determine whether the expression is a polynomial, and if so, find the degree of the polynomial. 2. 3x^2 + 4 - 2x^5
3. 1/2x^3 - 2 _/x + x/x + 1
4. 2/5x^7 + 3/4x^3 - 2 + x

4. a spring scale is constructed so that each 0.10-n increment is separated by 0.50 cm. what spring constant is necessary for the scale to be accurate? -1.0n/cm -0.10n/cm -9.8 n/cm -0.20n/cm

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on