Remember some simle log rules
loga+logb=log(ab)
xloga=loga^x

means

also, if no base is stated, assume base 10
so
log(2x)=-1 is base 10 and translates to
10^-1=2x
1/10=2x
divide both sides by 2 aka times 1/2
1/20=x
3log(2)+log(x)=3
log(2^3)+log(x)=3
log(8)+log(x)=3
log(8x)=3
base 10
10^3=8x
1000=8x
divide both sides by 8
x=125
Answer:
28 dollars
Step-by-step explanation:
$45+$5= $50 which is how much she spent it total
then she sells it for $78
so her profit would be $28
Answer:
see below
Step-by-step explanation:
This is not a linear function because it does not pass the vertical line test
A vertical line is not a function, it is a relation.
Well to find the total sales you must substitute for the variable in the equation;
t = 68.95b
t = 68.95(31)
t = 2,137.45
So the total of the store's boot sales is;
$2,137.45