ENVELOPES Sani has at least 68 envelopes to addressHe has addressed 17 of them. Write and solve an inequality hat describes how many more envelopes, at most, Sani has left to address.

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?