which type of basaltic lava flow has its surface covered with sharp-edged, angular blocks and rubble?

Why might the new countries be interested in joining the european union (eu)?

Aschool principal ordered 1,000 pencils. he gave an equal number to each of 7 teachers untill had given out as many as possibe. how many pencils were left?

Shanti wraps the gift she is taking to a friend's birthday party. she doesn't have very much paper, so she does not overlap any of the edges. how much paper did it take to cover the gift?