What is the value of the expression?

75 ÷ 5 - [(9 - 7) x 3] x 2

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Write the rational number in lowest terms 99/-15

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?