Perform the indicated operations.
x-4/7y - x+7 /8y + x+3/6y = _ _ _ _ _ _ _ / _ _ _ _

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

Mon wants to make 5 lbs of the sugar syrup. how much water and how much sugar does he need… …to make 5% syrup?

The triangles are similar. what is the value of x? enter your answer in the box.