Explain how a division problem is like an unknown factor?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?