Last week, hazel paid $32 to have 50 reports printed. this week, she paid $57 to have 100 reports printed. assume the relationship is linear. which equation models the relationship between the the numbers of the numbers of reports, x, and the cost y?
a. y=2x+68
b. y=1/2x+7
c. y=1/2x+34
d. y=2x+34

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: