Solve the system of equations

x= -9/2, y= -10

Step-by-step explanation:

you need find the x value in one equation and then subsitute it to the other equation, in this case, I would prefer finding it out of the first one.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1