A postulate isn't required to be proven
Answer: 50 - a = 49
Step-by-step explanation:
50 x a =50
50 x 1 = 50
a=1
50 - a = 50 - 1
50 - 1 = 49
You didn't write the (-2/7) as a power; you were supposed to do b to the power of -2 over 7, which is what the other person done in your other post regarding this
people this year = 10* people last year
people this year = 10* 387
people this year = 3870
Answer:
x=2 and y=-2
Step-by-step explanation:
