Well, there are 100 pennies in a dollar, and 10 dimes in a dollar. So, the ratio could be 10:100, or 1:10.
I believe the answer is 4) R, p, N. I hope this helps
(4x - 10) + (12x + 6) = 68
16x - 4 = 68
16 x = 72
x = 4.5
So, 12 (4.5) + 6 = 60
Start by calling the shortest side

. We then know that the longer leg (call it

) is 7 feet longer i.e.

. We also know that the hypotenuse,

is 1 foot more than twice the short leg i.e.

. We now have 3 unknowns but only 2 equations to solve them. Luckily we know this is a right triangle so we can use the Pythagorean Theorem as our third equation:

Substituting known values:

This is now an equation in one variable and can be solved algebraically for

. Back-substitution can then be used for the other sides.