If a people plane flies 600 miles an hour, and
the dog plane flies that speed minus 200, plus
50, minus another 100, how fast is the dog
plane?
Please help

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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?