Answer: 60 units^2
Step-by-step explanation:
The length of the hypotenuse is 68 km.
(a) Is 1.25 each.
(b) Is 1.22 each.
(c) Is 1.24 each.
(d) Is 1.20 each.
The correct answer and cheapest per unit, is (d).
The annual interest owed is
... 7% × $115,000 ≈ $8050
The monthly interest owed is 1/12 that amount.
... (1/12) × $8050 ≈ $671
_____
Some calculators are able to use 7% as a factor; others require you use the decimal equivalent, 0.07.
