Michele was walking down the street. she walked 0.89 miles on monday. on tuesday she walked 1.45. how much did she walk together?

Which of those sequences is a geometric sequence

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?