Step-by-step explanation:
Using the properties of logarithms, the left side of the equation becomes

while the right hand side becomes

so we end up with

Answer:
73 mph
Step-by-step explanation:
The question seems to be incomplete because the model is missing, I found a similar question with the addition of the model, so if we can solve it (see attached image).
We have that the model would be:
y = 43.81 - 0.395 * x
We need to solve for x, if y = 15
Replacing:
15 = 43.81 - 0.395 * x
Solving for x we have:
0.395 * x = 43.81 - 15
0.395 * x = 28.81
x = 28.81 / 0.395
x = 72.9
We are asked to round to the nearest number therefore x = 73.
The car will average 15 miles per gallon at the speed of 73 miles per hour.
Answer:
Step-by-step explanation:
1. Sinking Fund: Expenses like these are predictable. You know exactly when they’re going to come due, and you know at least approximately how much they’re going to cost"
So we have: down payment for a car, saving to start a business, saving for a college education
2. Rainy-Day Fund: unexpected expense you have to pay,
So we have: plumbing expenses, paying to fix a broken air conditioner, unexpected travel expense, plumbing expenses