Zoe paid \$18.60$18.60 in sales tax and tips for her dinner. the sales tax rate is 11\%11%, and she tipped 20\%20%. (the sales tax does not apply to the tip, and the tip is based on the price of the dinner before sales tax.)

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 population of a bacteria colony grows by a consistent percentage each hour and can be modeled by the function y = 500(1.16)t. what does the value 500 represent in the function?

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?