A contractor bought 10.8 ftsquared of sheet metal. She has used 2.3 ftsquared so far and has $136 worth of sheet metal remaining. The equation 10.8xminus2.3xequals136 represents how much sheet metal is remaining and the cost of the remaining amount. How much does sheet metal cost per square foot?

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).

Solve 2x+y=3 x+y=5 in substitution method

F(x)=x^3+4 question 6 options: the parent function is shifted up 4 units the parent function is shifted down 4 units the parent function is shifted left 4 units the parent function is shifted right 4 units