Select the equations that are true.
a. 24x - 8 = 8(3x - 1)
b. 6m - 15 = 3(2m - 5)
c. - 7x - 1 = - 107x + 1)
d. 16a + 24b = 8(8a + 16b)
e. - 8x - 12y - 16 = - 4(2x + 3y+ 4)

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

Which of these tools or constructions is used to inscribe a hexagon inside a circle?