The perimeter of the rectangular shaped building is 960ft. the shortest side of the building is 150ft. what is the length one of the longest sides of the building

Pls i’m too dumb to know what i’m doing right now

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?