Solve the problem.Mark had $786 in his checking account. He wrote checks for $59, $51, and $137. He then deposited $116 from his paycheck. What is Mark's new balance?
A. $1149
B. $423
C. $645
D. $655
Answer: D
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Solve the problem.Suppose that a family has 5 children and that the probability of having a girl is 
. What is the probability of having exactly two girls and three boys?
A. 0.0312 B. 0.6252 C. 0.0625 D. 0.3125
Given are the first three terms of a sequence that is geometric. Find a1 and r.
, 
, 
A. a1 = 
; r = 1
B. a1 = 
; r = 4
C. a1 = 
; r = 2
D. a1 = 
; r = 6
The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.2%. Assuming a Malthusian growth model, find the world population in 20 years. Round your answer to the nearest hundredths. ?
A. 121.45 billion B. 7.27 billion C. 7.44 billion D. 55.55 billion E. 7.63 billion
Use a calculator to evaluate the present value of an annuity formula for the values of the variables ?m ?= $150, ?r? = 7%, ?n? = 12, and ?t? = 5 years.
?
?
Please round the answer to the nearest cent.
?
$ __________
Fill in the blank(s) with the appropriate word(s).