Ms. johnson asked her class to write an equivalent expression to
14d - 9 + 21k - 7dk + 2
• riley wrote the expression
7dk(2 - 3 - 1) - 7
• ahmad wrote the expression
7(2d - 3k - dk) - 7
• ariana wrote the expression
7k(2d - 3 - d) - 7
who us correct? explain how you know.

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Use the expression below.–4b + 8c + 12 – 8b – 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(–2b + c + 3) b. 3(–2b + c + 3) c. 4(–2b + c + 3) d. 6(–2b + c + 3)part cwhat is the value of the expression when b = 2 and c = –3? enter your answer in the box.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.