What is the first step when rewriting y = 6x2 + 18x + 14 in the form y = a(x – h)2 + k?
a.16 must be factored from 18x + 14
b. x must be factored from 6x2 + 18x
c.6 must be factored from 6x2 + 14
d.6 must be factored from 6x2 + 18x

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).

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

Which shows a reasonable estimation for 124% of 42 using the distributive property?