Use the formula:
Y-yo=m(x-xo)
Answer: 12,600
Step-by-step explanation: 5% of 10,500 is 525. Multiply that by 4 and get 2,100. Add that to 10,500 and you get 12,600.
The logarithm of 10 to base 10 is 1
<h3>How to determine the logarithm?</h3>
The given parameters are:
Base = 10
Number = 10
So, the expression is:

As a general rule;

The above means that;
When the base and the number are the same, the logarithm is 1
So, we have:

Hence, the logarithmic value is 1
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Answer:
The plumbers cost would be equal to the equation 80+45x=y with y being the total amount of money he made and x being how many hours he worked.
Step-by-step explanation:
In this equation to find the amount the plumber was paid all you need to do is plug in the amount of hours he worked for x.
If the plumber worked his maximum of 8 hours then the equation would change from 80+45x=y to 80+(45×8)=440.
So, if the plumber worked for 8 hours he would make $440.
Answer:
$21
Step-by-step explanation:
7% = .07
$300 multiplied by .07 = $21