Direct variation is when
is the same for each coordinate.
Indirect variation is when x · y is the same for each coordinate.
11. Answer: Direct Variation
<u>Step-by-step explanation:</u>

12. Answer: Indirect Variation
<u>Step-by-step explanation:</u>

Answer: he drove 221 miles
Step-by-step explanation:
You subtract the initial fee from the total cost (175.11-15.99=159.12) the you divide that by the cost of every mile and it gives you the amount of miles.
Answer:
8.5
Step-by-step explanation:
The GCF of 30 and 49 is 1.
Steps to find GCF: <span><span>Find the prime factorization of 30
30 = 2 × 3 × 5 </span><span>Find the prime factorization of 49
49 = 7 × 7 </span><span>Multiply all the common factors obtained in steps i) and ii) above to find the GCF:
GCF = 1</span></span>
This is exponential decay of the form:
f=ir^t, f=final value, i=initial value, r=rate, t=time in this case:
V(t)=408000((100-18)/100)^t
V(t)=408000(0.82)^t so
Vo=408000 and b=0.82
....
V(8)=408000(0.82)^8
V(8)=$83400.95 to nearest cent