Your family drives 126 miles from key west to the florida main land. about 15% of this distance is spent on bridges. how many miles of bridges do you travel over?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?