Jamar is buying pizza and cookies for a party Piezas cost $9.00 each and
cookies cost five dollars per pound. Jamar wants to spend no more than
$50, but he needs at least 3 piezas and at least 2 pounds of cookies. 1)
Assign variables for the unknowns in the problem 2) Write a system of
inequalities to model the problem, what are some possible numbers of
each item Jamar can buy the will follow the constraints of the problem?

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.

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?