Weekly tips earned (in dollars): 167, 191, 190, 154, 188

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6