4) Whenever 3( + 6) − = 0, which of the following expressions are equal to a?
F) /3− 6b
G) /3− 2
H) 2 −/3
J) − 6
K) 3 − 6b

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?