Card A:
<span>$4,350 x 0.02 = $87
</span><span>$360 - $87 = $273
Card B:
Interest $270 no rebate
so $273 - $270 = $3
Card B cost least and $3 less than card A</span>
There are exactly 15 remainders modulo 15 and they are 0,1,2,…,14.
It is given that at least two of them should have the same remainder when divided by 15.
Division algorithm.
Let aa be an integer and d a positive integer. Then there are unique integers q and r with 
such that 
q is called the quotient and r is called the remainder
q=a div d
r=a mod d
Pigeonhole principle If k is a positive integer and k+1or more objects are placed into k boxes, then there is at least one box containing two or more objects.
Hence, there are exactly 15 remainders modulo 15 and they are 0,1,2,…,14.
Learn more about integers here: brainly.com/question/20521181
#SPJ4
Remark
A function is defined as 1 y value per x value. The y values can be the same for 2 x values, but the x values must have just 1 value associated with it. I am describing a vertical line test for a function. This is a function.
A 1 to 1 function means that the function obeys the horizontal line test. That means that for every x there is only 1 y value.
A
This graph is both a function and a 1 to 1 function. So the answer is A.
None of the other answers are this complete and one of them is wrong.
B
B is wrong. It is a 1 to 1 function.
C
C is wrong. The graph is a function.
D
D is wrong. No y values are duplicated.
The equation that can be used to find the area of the walkway is A = 3h+3b+9.
<h3>What is a rectangle?</h3>
A rectangle is a plane shape that has pair of opposite sides equal and parallel.
To find the equation that could be used to find the area of the walkway, we use the formula below.
Formula
- Area of the walkway(A) = Area of the swimming pool and the walk- area of the swimming pool
- A = [(h+3)(b+3)]-(hb)
- A = hb+3h+3b+9-hb
- A = 3h+3b+9.
Hence, The equation that can be used to find the area of the walkway is A = 3h+3b+9
Learn more about rectangles here: brainly.com/question/17297081
Step-by-step explanation:
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