A scientist cools some water at a constant rate. The graph and table show how the temperature of the water changes with time.
Which function models this situation?
Water Temperature
55
50
45
40
35
Temperature (°C)
o & 88 % & 8 8
30
25
20
15
8
10
Time (minutes)

Given the parent function of [tex]f(x)=x^4[/tex], what change will occur when the function is changed to [tex]f(\frac{1}{2} x)[/tex]?

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?