NGO has a collection of dimes and quarters with a total of $3.50. The number of dimes is 7 more than the number of quarters. How many of each coin does he have?

$24.50

Step-by-step explanation: $3.50 times 7 equals $24.50

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45

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