A concrete block is being lowered from a height of 350 feet above the ground at a constant rate of 4.2 feet per second. Which function can be used to determine the height, h, of the concrete block above ground after s seconds?

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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answer: 2530

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this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x

step-by-step explanation: