The equation y - 9 + 9 = - 17 + 9 is an example of which property of equality?

A. Substitution Property of Equality

B. Addition Property of Equality

C. Reflexive Property of Equality

D. Symmetric Property of Equality

10. Which represents the number of lines of symmetry that are possessed by a regular n-gon?

Each hour, the temperature rose by 1 and 1/2 degrees. What was the change in temperature in 1 and 1/2 hours? A. 1 1/4. B. 2 3/4 C. 2 1/4. D. 3

A classmate says that a rectangular prism that is 6 cm long, 8 cm wide, and 15 cm high is similar to a rectangular prism that is 12 cm long, 14 cm wide, and 21 cm high. Explain your classmate's error.

Simplify negative 3 over 2 divided by 2 over negative 6

Suppose a triangle has sides a, b, and c with side c the longest side, and that a2 + b2 > c2. Let θ be the measure of the angle opposite the side of length c. Which of the following must be true? Check all that apply ...

At a golf tournament, David scored + 6, Celia scored - 16, and Xaiver scored - 4. One of these three players was the winner of the tournament. Who won the tournament?

A spinner is divided into three equal sections labeled a B and C. Erik spins the spinner and rolls a fair number cube. The tree diagram shows the sample space for the possible outcomes.

A plant grew 2cm every day for d days l. How much did it grow

If f (x) = 0.5^x+1, evaluate f (-2).

Rewrite the expression with parentheses to equal the given value 3*4-1+2