Nannette installed a security system in her office for $150 the monthly monitoring fee is $30. So far, Nannette has spent $420 for her security system. For how many months has she had the service?

Solve the system of equations 2r + 2s = 50 and 2r - s = 17.

What do I do with the fraction I have to explain how the two fractions I made are equivalent

Which of the following is equal to the expression below? (4^-5) ^3 A. - 4^2 B. - 4^15 C. 1/4^15 D. 1/4^2

Ethan sold 2 3 gallon of lemonade. Kayla sold some lemonade too. Together, they sold 1 1 4 gallons. Who sold more lemonade, Ethan or Kayla? How much more?

The top three producers of gold in the world produce 1171 tonnes of gold. australia produces 256 tonnes. south africa produces 584 tonnes. the united states produces x tonnes. how much does the u. s. produce?

Which equation is true for x = 5? A) 2x + 5 = 25 Eliminate B) 3x + 5 = 17 C) 5x - 18 = 7 D) 6x - 10 = 26

How i solve 3x+18=3-2x

The sine of 37° is equal to the cosine of what angle? Enter your answer in the box.

1. Popeye is lifting Olive Oyl off the ground by pulling her upward with a force of 108.1 N. She is pretty thin so she only weighs 10 kg. What is Olive Oyl's acceleration as a result of this force?

Which expression is the factorization of 8x^2+13x-6?