Determine whether each of the functions represent exponential growth or exponential decay Exponential Exponential
Function
Growth Decay
#
1
y =
2
y = 72
3
3
4
y = (0.81)"
y = (1.2)"
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the k side

step-by-step explanation:

plese mark mde brainliest!

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.