What must be added to the expression x2-18 to make it a perfect square?
A 64 B.81 C. 100 D. 144 E. 125

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

How do i multiply two digit numbers

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.