Show and explain how you will estimate the answer to the problem for 4 3/8+5 6/10 i need this answer asap.

When they are both racing on hoverboards, victoria is 3 times as fast as her brother max. when she is on foot, she is 3 times slower than max on his hoverboard. they took off on hoverboards at the same time, but after 12 minutes, victoria’s hoverboard broke and she immediately started to run. if the race was a tie, how long, in minutes, did it last from start to finish?

Is a currency whose value is tied to another currency, meaning that the exchange is fixed

Is the open sentence 5x-2=3x+2 true when x=2? justify your answer.