The answer should be f(x)=20(2.5)^x
How?
the graph crosses the f(x) axis at 20 but that's common in all 4 equations. However, when x=1, f(x)=50. We have to know try all the equations by substituting these values in ( both sides are equal).
f(x)=20(2.5)^x
substitute f(x)=50, x=1
50=20(2.5)^1
50=20*2.5
50=50
Answer: There were 8 granola bars in each box, x = 8.
Step-by-step explanation:
The first step is write an equation:
4x + 5x = 72
The second step is to combine like terms:
4x + 5x = 72
9x = 72
Step 3 is to use the properties of equality and inverse operations to solve the equation:
9x/9 = 72/9
x = 8
Since x = 8, there were 8 granola bars in each box.
I hope I helped and have a great day! Please mark me brainliest. ^-^
The answer choice should be D
