On time jimmy needs $42 to buy a pack of comic books. he has saved $18 and plans to work as a babysitter to earn $6 per hour. which inequality shows the minimum number of hours, n, that jimmy should work as a babysitter to earn enough to buy a pack of comic books? 6n ≥ 42 + 18, so n ≥ 10 6n ≤ 42 + 18, so n ≤ 10 18 + 6n ≤ 42, so n ≤ 4 18 + 6n ≥ 42, so n ≥ 4

For what values of b will f(x)= logbx be a decreasing function? (16 )

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).

What is the square root of 45? (step by step working plz)