Answer:
the graph corresponds to function "D" 
Step-by-step explanation:
Since the graph shown corresponds to an exponential "decay" (the function decreases as we move from left to right), the base of the exponent has to be a number smaller than 1 (one). So we examine the only two options that give such (options C and D which have fractions as the base - 1/3 and 1/5 respectively)
From there, we analyze which of the two functions satisfies the crossing of the y-axis at (0,3) which is clearly shown in the graph:
We study both:
function C at x = 0 gives:

while function D at x = 0 gives:

Therefore, the graph corresponds to function "D"
is that what you looking for
Answer:
Your answer is $24
Step-by-step explanation:
5*4 is 20, so all that you have to do it 6*4
4 weeks of 25 dollars is 100
he can spend 300
he can spend for 12 weeks and have 200 dollars left over