Write an expression that shows the product of 5 and the difference of 12 and 9

Which expressions are equivalent to -6 + 3m

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )