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In a certain year, brand A of a heart-rate watch cost $35.77 and brand B cost $56.77. A non-profit community health organization purchased 35 heart-rate watches for use at a wellness center. If the organization spent $1504.95 for the watches, how many of...

In a cetain year, solar and wind energy generation totaled 1034 trillion Btu's. Wind generated 53 trillion Btu's more than eight times that generated by solar energy. How much was generated by each source?

In 2009, a diabetic express company charged $38.85 for a vial of type A insulin and $30.49 for a vial of type B insulin. If a total of $2004.96 was collected for 60 vials of insulin, how many vials of each type were sold?

Express using positive exponents and, if possible, simplify. z^-4/6x^2 =

Simplify. Do not use negative exponents in the answer. -25a^-2/10b^-4 HAVING A HARD TIME WITH THIS ONE!! i KNOW YOU REVERSE THE LETTERS AND THE NEGATIVE POWERS ARE TURNED INTO POSITIVE AND RECIPROCATED BUT THE -24/10 I CANT FIGURE OUT FROM THE EXAMPLE I W...

Like Terms and Degree Identify the degree of each term of each polynomial. Then find the degree of the polynomial xy^3 + 7x^3y^2 - 6xy^4 + 2

Identify the degree of each term of each polynomial. Then find the degree of the polynomial. xy^3 + 7x^3y^2 - 6xy^4 + 2 I know the degree of the first term is xy^3 is 4. I cant seem to find the second term

Identify the degree of each term of each polynomial. Then find the degree of the polynomial. xy^3 + 7x^3y^2 - 6xy^4 + 2 I am really having trouble with how this process works. I know the degree of the polynomial is 5 but I don't know how to identify the d...

Add (5x^2-7x + 23) + (2x^2 + 9x - 72) =

Yes, and maybe I should have made myself clearer but my husband just killed himself and this is my last class and then I graduate and I never took Algebra or anything beyond basic math in high school. What or all I needed to know was the steps not the ans...