River C is 300 Miles longer than River D. If the sum of their lengths is 5,530 miles, what is the length of each river? PLEASE SHOW STEPS GOTTA PASS THESE FINALS

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9