Solve using the multiplication property of equality.-7 ? 
A. x ? -21
B. x < -21
C. x > -21
D. x ? -21
Answer: A
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Find the equivalent earnings.Barbara's yearly salary is $17,212. What is her biweekly salary?
A. $331 B. $1,434.33 C. $717.17 D. $662.00
Translate the percent problem to a basic percent equation using x for the unknown value. Do not solve.32% of 60 is what number?
A. x ? 0.32 = 60 B. 0.32 ? 60 = x C. 0.60 ? 32 = x D. x ? 0.60 = 32
The total annual revenue R of the Miramar Resorts Hotel is related to the amount of money x the hotel spends on advertising its services by the function
?
where both R and x are measured in thousands of dollars.
?
Use this function to:
?
a) Find the interval where the graph of R is concave upward and the interval where the graph of R is concave downward.
b) Find the inflection point of R.
c) Determine if it would it be more beneficial for the hotel to increase its advertising budget slightly when the budget is $240,000 or when it is $260,000.
?
A. concave downward on 
;
concave upward on 
;
inflection point is 
B. concave upward on
;concave downward on 
;
inflection point is 
C. concave upward on
;concave downward on 
;
inflection point is 
D. concave downward on
;concave upward on 
;
inflection point is 
E. concave upward on
;concave downward on 
;
inflection point is 
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log4
A. log411 + 
log4x
B. 
log411x
C. log4
+ log4
D. 
log411 + 
log4x