Jessie works in a factory which makes chairs. He was given an order to make a number of chairs for a company. He made 1/7 of the number of chairs on first day, 3/8 of the number of chairs on second day and 1/5 of the number of chairs on the third day. If he needed to make 158 chairs on the fourth day to complete the order, how many chairs were ordered to be made? please help me​

The product of two negative rational numbers is always zero sometimes zero never zero

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.

What is the area of a pizza with a radius of 40 cm leave the answer in terms of π to find your exact answer 40π cm² 1600π cm² 800π cm² 80π cm² π=pi