What is the value of x for mab=45 and mcd=42

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.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.