Add or subtract as indicated.(5a + 6b - c) - (3b + 5c - 5d)
A. 5a + 3b - 6c - 5d
B. 5a + 3b - 6c + 5d
C. 5a + 3b + 4c + 5d
D. 5a + 3b - 4c + 5d
Answer: B
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A cohort of fish is a group of fish of the same age. For a certain fish in the North Sea, the total biomass B, in pounds, of a cohort of age 
years is given by
.
?
A: Make a graph of B versus 
for fish up to 30 years old.B: Fishing of a cohort is allowed if the biomass of that cohort is at least 2,000 pounds. Add the graph of 
to the graph you made in part A.C: What age cohorts are allowed to be fished? Round your answer to two decimal places.
What will be an ideal response?
Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Solve.
= 4
A. 
B. 
C. 
D. ?
Select a scatter plot of the given data.
?
r 
t 
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?