Judie has 1,007,998,876 gems in a game. she gives 61 away and got 19 back. then she uses a multiply cheat in a game to multiply her gems. how many gems does she have now? (i just want to see if you know i already do)

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?