How is 1 half to the power of 4 =to how is 1 half to the power7

Graph the following system of linear inequalities. identify at least two points in the solution: y < 5 - 2x | x + 5y > -7

∠1 and ∠2 are vertical angles. ∠2 has a measure of 63°. what is the measure of ∠1 ? enter your answer in the box.

Quickly! linda had an orange ribbon and a blue ribbon. the orange ribbon was 2 meters long. the blue ribbon was 4/5 as long as the orange ribbon. linda cut off a piece of blue ribbon. the length of the piece was 25% of the length of the blue ribbon. a) what was the length of the blue ribbon before it was cut. b) find the length of the piece of blue ribbon that linda cut off.