You open the fridge and take out last night's pizza box 3/4 of the pizza remains. after 7 minutes of eating 1/4 of the pizza is lef

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).

How are sas and sss used to show that two triangles are congruent?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.