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Alik [6]
3 years ago
5

Can you help me with 19 20 and 21 please and explain it

Mathematics
1 answer:
ra1l [238]3 years ago
8 0
Its asking how far they traveled in that time, for example, 60 MPH for 3.5 hours is 210 miles.
you would multiply the R by the T to get the D

19. 210 miles

20. 1440 meters

21. 1560 feet

Hope this helped, please follow!
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157\ in^{2}

Step-by-step explanation:

we know that

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<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The given exponential expression can be simplified as shown below.

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Learn more about Expression here:

brainly.com/question/13947055

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