
<em>Find the gradient of the line joining (-1,9) and (3,5)</em>
<em />
Use the slope formula:-

Replace the letters with the numbers:-

On simplification,

On further simplification,


<h3>Good luck with your studies.</h3>

Answer:
500
Step-by-step explanation:
First, 4✘5^3
Then, 4✘125
Last, =500
$18.72
20% of $15.60 is $3.12
$15.60+$3.12=$18.72
Not sure what you're asking, but if it's a T/F question, the answer would be false.
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