Answer:
16.67%
Step-by-step explanation:
The customer spent a total of $18 on a $15 meal. This means that, if counting tax within the $15 meal, the tip is $3.
Divide 3 with the total cost:
3/18 = ~0.1667
Change to percentage. Simply move the decimal point to the right two place values, and add a percentage sign:
0.1667 to a percent = 16.67%
16.67% is your answer.
~
To find slope use the slope formula. Then, use y=mx+b. Plug in the numbers.
Answer:
9.135
Step-by-step explanation:
The given expression is 
It can be written as 
[ we can add or subtract the same thing]
The expression can be factored as difference of two squares
![16x^{4}-64=[4x]^{2}-(8)^{2}=(4x^{2}+8)(4x^{2}-8)](https://tex.z-dn.net/?f=16x%5E%7B4%7D-64%3D%5B4x%5D%5E%7B2%7D-%288%29%5E%7B2%7D%3D%284x%5E%7B2%7D%2B8%29%284x%5E%7B2%7D-8%29)
The common factor of the two terms is 16
WE can take 16 as common factor:![16x^{4}-64=16[x^{2}-2^{2}]](https://tex.z-dn.net/?f=16x%5E%7B4%7D-64%3D16%5Bx%5E%7B2%7D-2%5E%7B2%7D%5D)
=
Options 1 ,3,4 are the equivalent expressions.
