Number of Trees Number of Apples
10 100
15 200
20 300
25 400
find the constant rate

it increases by 100 every 5 the first column goes up

Step-by-step explanation:

if column 1 is and column 2 is y then

y=20x - 50

20 fer evry x minus 50

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

the 3rd on is correct

step-by-step explanation: