Well, without any prices, I can’t give you a number. And someone else may have a simpler way to do this.
But we’ll call the original bill x.
After the 10% off coupon, the bill is 0.9x
Adding tax = 0.07(0.9x) + 0.9x
Adding a tip = 0.20[0.07(0.9x) + 0.9x)]
If you have numbers to plug in, put them in a comment below & I’ll help more.
Answer:
-63
Step-by-step explanation:
The Meaning<span> of </span>Slope<span> and y-Intercept is when in the equation of a straight </span>line<span> (when the equation is written as "y = mx + b"), the </span>slope <span>is the number "m" that is multiplied on the x, and "b" is the y-intercept, where the </span>line <span>crosses the y-axis.</span>
If 
then 
is equal to 
What is an exponent?
⇒An exponent refers to the number of times a number is multiplied by itself.
Multiplication of exponents
⇒ It is also known as the law on indices. For multiplication with the same base, we add the powers.
For the same base 
For the different base and same power 
Calculation:
⇒ We have been given that and by this relation, we have to prove that: = 
⇒
By taking power of Y both sides
⇒ 
XY=ZY+XZ
On dividing by 1/XYZ into both sides we will get
⇒ 
Hence, it is now proved that if then is equal to
Learn more about the law of indices here :
brainly.com/question/170984
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