Answer:
$121.95
Step-by-step explanation:
First, we need to change 45% into a decimal. To do that, move the decimal point two spaces back, and we will have 0.45.
Multiply that by the original price $84.10
$84.10 x 0.45 = 37.845
Then add 84.10 with 37.845
This adds up to $121.945, which you can round to $121.95
Answer:
see below
Step-by-step explanation:
See attached screenshot (too time consuming to type out using latex, so used MS word).

Here, we want to get what Andre's mistake was and correct it
To answer this, we are supposed to use the division law of indices
We have this as;

Now, in the case of this question, x is 4 and y is -3
So, we have the expression as;

His mistake is thus adding the exponents instead of subtracting
Given that,
Alonzo is $120 in debt. He makes $15 per hour. He wants to have at least $75 left over after he has paid off his debt.
To find,
The inequality and the solution.
Solution,
Let he make $x per hour. Here, $120 is fixed. $15 is added per hour.
ATQ,

For atleast, we use
.
Subtract 120 from both sides.

So, the required answer is greater than -3.