Answer:
5
Step-by-step explanation:
Answer:
-480
Step-by-step explanation:
If f varies directly as g, and inversely as h, then we can write the variation equation:
, where k is the constant of variation.
If g=56 when h=-2 and f=-7, then we substitute these values into the formula to find the value of k.



The equation now becomes:

if f=10 and h=-12, then;


The correct answer is B.
Answer:
3
Step-by-step explanation:
420=2x2x3x5x7
recall that 2,3,5,7 are all prime numbers
Year 1: 7lbs x 3years= 21lbs
Year 2: 21lbs x 3years = 63lbs