Chứng minh : giao điểm của hình chữ nhật là tâm đối xứng của hình chữ nhật đó

Which term best describes the association between variables a and b

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28