Answer: 
Step-by-step explanation:
Remember the logarithms properties:

Then,simplifying:

Apply base 8 to boths sides and then solve for "x":

Answer:
68%
Step-by-step explanation:
Divide the amount she spent this year, by the amount she spent last year, in this case, 393 divided by 572 =0.68706293706, but we need to make it into hundredths, so it is 0.68, or 68%.
Answer:
8/56
Step-by-step explanation:
Add up all other marble colors then find the difference from the total.
Answer:
true..?
Step-by-step explanation:
Answer:
25.9
Step-by-step explanation:
12+7x−(1−3) (evaluate parentheses first)
= 12+ 7x - (-2)
= 12+ 7x + 2
= 14+ 7x
When x = 1.7, equation becomes
14+ 7(1.7)
= 14 + 11.9
= 25.9