Jonathan has a comic book collection. He tells you he sold half of them, but then bought 12 more new comics.
After this, Jonathan now has 90 comic books. How many comic books did he have before he sold some?
a) Let b = the number of Jonathan had before selling some. Write the equation you would use to solve this
problem.
Preview
b) Now solve your equation
Jonathan had
comic books before selling.

c. side angle side. u shares the same sides

the answer is 40.

proof:

is there supposed to be a picture here?

graph #4 (last graph) depict the function   f(x)= -m(x-d)^1/5 i

step-by-step explanation:

we know that

m=slope

but in this function slope is -m that means slope is decreasing and it is decreasing by 1/5 points down the x-axis.

which is shown in graph four

a decreasing slope down x-axis by 1/5 points.

hence 4th graph is the right option for this.