Answer:
x = 65
Step-by-step explanation:
Triangle interior angle sum is 180 degrees.
2x + 25 + 25 = 180
2x = 130
x = 65
Answer:
.009 miles/hour
Step-by-step explanation:

This is the method you should take with unit conversions in general, just set up fractions so the units cancel out, like the 7.5 feet cancels out with the feet in the 1/5280 so miles is left on top.
\[\sum_{n=1}^{7} 2(-2)^{n-1}\]
Answer:
1. 48
2. 96
3. 2.16
4.252
Step-by-step explanation: