Write an integer for each situation.(in this exercise you must wirte the + and negative signs)
1.) a profit of $12
2.) 1,440 feet below sea level
3.) 22°f below 0
4.) a gain of 31 yards

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.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

The suare root of 9x plus 7 plus the square rot of 2x equall to 7