Jonny is writing a program for a video game. For one part of the game he uses the rule given below to move objects on the screen. Showing all your work, give the
output that the rulergives for the inputs.
(x, y) --> (x - 8.2, y + 3.6)
First input: (7.6, 9.3)
Second input: (10.5, -2.1)

if im not mistaking its

step-by-step explanation:  

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !