Step-by-step explanation:
f(x) = x - 2
f(-1) = -1 -2
= -3
Step-by-step explanation:
3x²+4=31
3x²=31-4
3x²=27
x²=27÷3
x²=9
x=±3
well it is going to be 10,000,000 (000-0000 to 999-9999) minus any number before 100-0000 that would make 9,000,000 legal numbers.
i would have to guess
She walks 6/5 of a mile in 1 hour
So, she walks 1.2 miles per hour