91Ó°ÊÓ

Simplify by combining like terms whenever possible. $$4 a-2 b-5 c$$

Simplify by combining like terms whenever possible. $$3 x^{2}+7 x+x^{2}+3 x$$

Examine each of the following expressions as given and determine the number of terms. Also find the coefficient and the literal part of each term. $$2 a^{2}+7 a-3$$

Simplify by combining like terms whenever possible. $$-5 s^{2}+3 s t-s^{2}+6 s^{2}$$

Evaluate the given expression for \(x=0.24\) and \(y=-0.5 .\) Round off to the nearest thousandth where necessary. $$10 x^{3}+20 y$$

Simplify by combining like terms whenever possible. $$2 x^{2} y+x y^{2}-x^{2} y-x^{2} y-x y^{2}$$

Simplify by combining like terms whenever possible. $$0.28 x+5.48+0.54 x$$

Simplify by combining like terms whenever possible. $$0.085 x+28.75+0.072 x+54.8$$

Evaluate the given expression for \(x=0.24\) and \(y=-0.5 .\) Round off to the nearest thousandth where necessary. $$\frac{5}{x y}$$

Simplify by combining like terms whenever possible. $$3(x+y)+4 x-y$$