Plz, me, guys! show a step by step if you can.
a local ace hardware sells batteries ($3) and small boxes of pens ($4). in august, total sales were $976. customers bought 4 times as many batteries as boxes of pens. how many of each did ace hardware sell?

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?

Determine the solution for mc001-1.jpeg

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no