Aship travels 55km on a bearing of 27 degrees and then travels on a bearing of 177 degrees for 140km. find the distance from the starting point to the ending points.

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.