Graph both functions to find solutions to the system

f(x)=x+1
g(x)=x^2−6x−7

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed