A baker purchased 10 lb of wheat flour and 12 lb of rye flour for a total cost of $15.60. A second purchase, at the same prices, included 13 lb of wheat flour and 15 lb of rye flour. The cost of the second purchase was $19.95. Find the cost per pound of the wheat flour and of the rye flour.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).