Harriet has $616 to buy desks for her new office. she needs 15 in all, and decides to buy 2 types of desks. type a cost $42 and type b desks cost $40. how many desks of each type can harriet buy?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

What is the slope of the line shown below?

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.