Answer:
Walter builds birdhouses. he spends $5 on the materials for each birdhouse. he can build one in 30 minutes. he is semi-retired but earns $8 per hour at the local hardware store. he can sell a birdhouse for $20 each. refer to scenario 13-11. the explicit cost for one birdhouse is
Step-by-step explanation:
Answer:
(-∞,∞)
Step-by-step explanation:
It is positive for all x
Answer:
The equation is 
Step-by-step explanation:
Observing the graph
Let

step 1
Find the slope m

step 2
Find the equation of the line into point slope form

with the point
and the slope 
substitute


a) t in this equation would be the number of years so in this case t=4
b)3.5/100=0.035
c)A=600(1+(0.035/1)^(1×4)=688.51
d) The account earned $88.51
Yes, this answer is correct.