Understanding Variables and Equations

What is the correct order of operations to follow when solving equations?

• Parentheses, Multiplication, Addition, Subtraction, Exponents, Division

• Multiplication, Division, Addition, Subtraction, Parentheses, Exponents

• Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

• Exponents, Parentheses, Addition, Subtraction, Multiplication, Division

If a race requires 43 gallons of gas in total, and 12 gallons are used for each of the first two laps, how much gas is used in the last lap?

• 12 gallons

• 19 gallons

• 43 gallons

• 24 gallons

In the equation 43 = 2 * 12 + G, what does the variable G represent?

• The total gallons of gas used in the race

• The gallons of gas used in the first two laps

• The gallons of gas used in the last lap

• The number of laps in the race

How many cupcakes does each crew member receive if there are 38 cupcakes in total, 7 crew members, and 3 cupcakes are reserved?

• 5 cupcakes

• 7 cupcakes

• 6 cupcakes

• 4 cupcakes

In the equation 38 = 7C + 3, what does the variable C represent?

• The number of cupcakes reserved

• The number of crew members

• The number of cupcakes each crew member receives

• The total number of cupcakes