What is the volume, in cubic m, of a cube with an edge length of 18m?

Which number line correctly shows 0.8 + 0.3?

Savannah talked for 6 minutes on the phone. catherine talked for n minutes. catherine talked 3 times as long as savannah. how long did nathan talk?

Lisa dined at a restaurant and gave the waiter a 15% tip if the price of her meal was $10.25 how much did lisa tip the waiter