Use the drop-down menus to answer the questions. 3 + (5 + 7)

Use the commutative property of operations on the numbers in the parentheses.

Use the associative property of operations to change the grouping after completing the commutative property.

Evaluate the expression.

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).

Adriveway is 40 yards long about how many meters long is it

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}