Answer:
The expression can be simplified by distributing the minus sign to each of the terms inside of the expression.
Step-by-step explanation:
465
because it is the wright answer
21 1/2 yd
43/4 + 43/4 = 21 1/2 yd
3x+12
3(x+4)
Use the distributive property to multiply 3 by x+4.