384. 25 is the correct answer.
1.50x + 6.50y is your algebraic expression.
The surface area of cone B is 10 km², and Cone B is the image of cone A after dilation by a scale factor of 1/2
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Cone B is the image of cone A after dilation by a scale factor of 1/2, hence:
Surface area of cone B = 40 km² * (1/2)² = 10 km²
The surface area of cone B is 10 km², and Cone B is the image of cone A after dilation by a scale factor of 1/2
Find out more on equation at: brainly.com/question/2972832
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<span>Correct answer is A.
Anything with a constant gradient is a linear function.
y = c
y = 0×x + c
k = 0 - constant gradient</span>
