What is the answer to this eqution 3.5(x+2)=-4 ? could you please help me thank you

Which expression is equivalent to 2x^2+7x+4?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

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?