1.Bart's grandfather gave him a collection of 780 old books. Bart purchases 20 books every month to add to the collection. The size of the collection, c, is given by
6
C-780+20m
o
60
where m is the number of months Bart has been collecting. If the collection currently
contains 900 books, how many months has Bart been collecting?

45

84

first one is a: renaming a fraction. second one is c: de-c

step-by-step explanation:

my explanation is that these were the answers on edg : )

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb