A bookstore sells 4 books for $38. Which table represents the relationship between number of books and the total price?
A
B
Books Cost
Books Cost
4
$38
4
$38
5
$47.50
8
$42
6
$57
12
$46
с
D
Books Cost
Books
Cost
1
$9.50
1
$9.50
2
$10.50
11
$19.50
3
$11.50
21
$29.50
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ОС
OD

c. (3,2,6) is the answer.

what graph

step-by-step explanation:

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752