Answer:
Step-by-step explanation:
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An equation that shows the relationship between speed and time is 
<u>Given the following data:</u>
To write an equation that shows the relationship between speed and time:
<h3>What is speed?</h3>
Speed can be defined as the distance covered by a physical object per unit of time. Thus, the cyclist's speed can be measured as miles per minutes.
Mathematically, speed is given by this formula;

Substituting the given parameters into the formula, we have;

Read more on speed here: brainly.com/question/10545161
Answer:
$15.6
Step-by-step explanation:
Based on the given information, it is $15.6. However, it never specified how many hours she works a day and how many days of the week she works, so we must assume it is just 624/40.
Assuming the function is x^2
A = (1/2)(x)(y)
Let x = diagonal 1
Let y = diagonal 2
The product of xy = 144.
This means that x = 12 and y = 12.
So, 12 • 12 = 144
Each diagonal is 12 feet.
Prove:
72 feet = (1/2)(12)(12) feet
72 feet = (1/2)(144) feet
72 feet = 72 feet