The area of a rectangle is 84 square meters. The length of the rectangle is 5 meters longer than the width. What is the length,
in meters, of the rectangle?

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

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).

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey