Please help me (confusing) Mathematics Assignment Help

Heidi’s Accessories bought 50 necklaces for $10 each on account. The invoice included a 6% sales tax and payment terms of 2/10, n/30. Five necklaces were returned prior to payment. The entry to record the return would include a debit to

If the solution process is exothermic, then an increase in temperature usually results in:

2.  The graph should
show the data from 1950 to the present when possible.  You will need to edit the graph to do this.  Some graphs will require you to add two lines
to a graph; others will require you to use the drop down boxes to modify the
data.  Use FRED to make these changes to
the data.  Also, use seasonally adjusted
data at annual rates when possible.   

question:

The substance calcium is found to crystallize in a cubic lattice, with an edge length of 556.0 pm. If the density of solid calcium is 1.549 g/cm³, how many Caatoms are there per unit cell?

Your answer should be an integer:  atoms