I think its 1000 numbers because there from 1 to 999 there are 999 numbers, and then you add zero because it is also a whole number.

The 2nd choice is appropriate.
-3x + 4y = 12
x - y = 1....x = y + 1
-3(y + 1) + 4y = 12
-3y - 3 + 4y = 12
-3y + 4y = 12 + 3
y = 15
x - y = 1
x - 15 = 1
x = 1 + 15
x = 16
one solution (16,15)
Answer:

Step-by-step explanation:
h(x) + g(x) = 

Answer:The answer is 70$
Step-by-step explanation: 12x5 which is dollars per rose is 60. 60$ is how much the roses costs. Since it is one delivery, there is a 10$ fee. 60$+10$= 70$