Provide an appropriate response.Solve using a system of equations: A broker invested $15,000 in two different stocks. One earned dividends at a rate of 8% and the other at 10%. If a dividend of $1,370 was earned on both stocks together, how much was invested at each rate?
What will be an ideal response?
$8,500 @ 10% and $6,500 @ 8%
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Decide whether or not the events are commutative.Setting the table and eating dinner.
A. No B. Yes
Write the expression in standard form.
A. 
+ 
i
B. 
+ 
i
C. 
+ 
i
D. 
- 
i
Solve.Bill paid $2.79 for a phone call lasting 14 minutes. Write and solve an equation to find the price per minute, x. Round to the nearest cent.
A. 
= $2.79; $0.20
B. 
= $2.79; $39.06
C. 14x = $2.79; $0.20
D. 14x = $2.79; $0.07
Solve the problem.A company predicts that sales will increase rapidly after a new product is released, with the number of units sold weekly modeled by N = 3000(0.2)0.7t, where t represents the number of weeks after the product is released. Use graphical or numerical methods to find the first week in which 2250 units were sold.
A. 7th week B. 5th week C. 6th week D. 3rd week