Solve the problem.The rate of growth of a microbe population is given by 
where x is time in days. What is the net growth between day 3 and day 7?
A. 117,238,789
B. 222,613,544
C. 222,613,533
D. 111,306,789
Answer: A
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Solve the problem.If a boat uses 23 gallons of gas to go 65 miles, how many miles can the boat travel on 115 gallons of gas?
A. 13 mi B. 345 mi C. 650 mi D. 325 mi
Perform the row operation(s) on the given augmented matrix.(a) R2 = -5r1 + r2(b) R3 = -4r1 + r3(c) R3 = 4r2 + r3
A. 
B. 
C. 
D. 
Graph the inequality.y ? 5x
A. 
B. 
C. 
D. 
Solve the problem.Bill & Jose's Discount Cinema sold adult tickets for $5.30 each and children's tickets for $3.20 each. Last Tuesday, a total of $164.50 was collected from 35 movie watchers. Write the system of equations.
A. x - y = 35 5.30x + 3.20y = $164.50 B. x + y = 8.50 5.30x + 3.20y = $164.50 C. x + y = 164.50 5.30x + 3.20y = $35 D. x + y = 35 5.30x + 3.20y = $164.50