How many minutes are required for a car to go 10 miles at a constant speed of 60 miles per
hour?
a) 600
b) 100
c) 60
d) 10

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.