Answer:
7 to 15
All the students are 30:
14 : 30
The simplest form is dividing the above sides , both, by 2 .
The second one, I believe.
Hope this helps
Marines, weary from battling North Vietnamese, rest at the altar of an abandoned Roman Catholic church south of Con Thien in South Vietnam on May 16, 1967 does this help?
D. They secured the U.S. border of the Oregon Territory by negotiating a treaty with England.