What are the factor of pair of number? a.45 and 60

b.45 and 70

c.40 and 80

d.30 and 50

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Pls! does anybody know a shortcut for answering these types of questions in the future?

Write the following as a base and exponent