A model car has a windshield with dimensions 1/18 the size of a real car. The rectangular windshield of the real car has an area of about 2,218 square inches, with a width of 61 inches. What are the side lengths of the model cars windshield?Round to the nearest hundredth.

Which fraction below is equivalent to 10/12?

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

Which one is the correct answer, and why?