An oak tree in jake's yard is 13 times taller than a model tree that he is making for a performance set. together, the oak tree and model tree are 112 feet tall. how tall is the model tree?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Which expression is equivalent to -5(3x - 6/7)

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.