Anil bought a book and a pen . The cost of the pen is 60%the price of the book. The book cost $10.00 more than the pen .How much did she pay for the both items

$16.00

Step-by-step explanation:

10% of $10.00 is $1.00. 1x6= 6

10+6 = 16

step-by-step explanation:

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for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c