?

The table below gives the distances required to come to a stop from several speeds when Sarah drives her car:

speed (km/h) Sarah’s reaction distance (m) Car’s braking distance (m) Total stopping distance (m)

0 0 0 0

20 16 4 20

40 32 16 48

60 48 36 84

80 64 64 128

100 80 100 180

120 96 144 240

When John drives the same car the relationship between his total stopping distance, d, in metres and his speed, s, in km/h is . d=0.01s^2+1.5s

Compare Sarah’s and John’s total stopping distances if they are traveling at 70 km/h.

Justify your answer.

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• The tennis racket’s original price is $75.

• All tennis rackets are on sale for 25% off the original price.

• The tennis racket has a scratch, so she receives an additional 10% off the sale price.

How much does Susan pay for her tennis racket, including 13% tax?can u please answer in steps

1 7/9 - 2/5

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