Pre-Algebra Final Exam Review Insights

What is the correct order of operations according to PEMDAS?

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

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

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

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

If a = 3 and b = -4, what is the value of the expression 3 - (-4)^2 + 4 * 3^3?

• 134

• 108

• 54

• 26

Using the Pythagorean theorem, what is the length of the missing side of a right triangle if one leg is 15 and the hypotenuse is 17?

• 12

• 8

• 10

• 9

What is the formula for the circumference of a circle?

• 2πr^2

• 2πr

• πr^2

• πd

Mary has 5 1/3 pounds of flour and uses 2 3/4 pounds for baking. How much flour does she have left?

• 2 1/2 pounds

• 2 7/12 pounds

• 3 1/4 pounds

• 2 5/12 pounds

What is the percentage decrease when a car's value drops from $18,000 to $15,900?

• 11.67%

• 12.5%

• 10.5%

• 11.33%

Which of the following is a rational number?

• π

• e

• √2

• 3/7

What is the next term in the arithmetic sequence: 7, 13, 19, 25?

• 30

• 31

• 32

• 33

What is the volume of a cone with a radius of 5 cm and a height of 12 cm?

• 100π cubic cm

• 150π cubic cm

• 200π cubic cm

• 250π cubic cm

If a point (x, y) is reflected over the y-axis, what will be the new coordinates of the point (-3, 4)?

• (3, 4)

• (-3, -4)

• (-3, 4)

• (3, -4)