A farmer mixes a 20% fertilizer solution with a 40% fertilizer solution to make 8 quart
of a 33.75% fertilizer solution. How many
quarts of each does he use?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

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