D x= -9
Y=9
Because 4(-9)+45=9
I just put in each one and d got it right.
Well 5 1/4 hours is 5 hours and 15 minutes and 2/3 of 5 hours and 15 minutes or 315(5*60+15) is 210
hope it helped
Solution
-3b + 11 = -18 + 8b
-3b - 8b = -18 - 11
-11b = -29
b = 29/11
Your number would be 10 and the exponet would be 6