Answer:
10
Step-by-step explanation:
I assume it's a rectangle, therefore:
P = 50
a = 15 ft
b = ?
P = 2a + 2b
50 = 2 * 15 + 2b
50 = 30 + 2b
2b = 50 - 30
2b = 20
b = 10
Answer: The answer is 6n+7y
Step-by-step explanation: All you have to do is add like terms
Bro that's a lot, i don't know what the heck you are talking about.
56. Angles will not change if you stretch out the lines making them.