Add.

13.3 + (–7)

6.3

–20.3

–6.3

20.3

If you are just building your payment history, how many points from a perfect score will you possibly miss?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

How to simply and write the answer n a whole number