Arah is keeping up with how many miles her car gets per gallon. she starts with a full tank. after 448 miles, she fills up with 14 gallons. if she plots the points (0,0) and (14,448) on a coordinate plane, what would be the y-value of the point (1,y)?

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