Casey types at a constant speed, as shown in the following table. words typed seconds 11 55 22 1010 77 3535 1212 6060 what does 55 mean in this situation?

5 second per word is the pace of Casey.

Step-by-step explanation:

Here the given table is,

Words Types      1              2                 7                  12                

Seconds            5              10               35               60

Since, According to the above table,

The time taken by him for typing 1 word = 5 seconds.

The time taken by him for typing 2 word = 10 seconds

The time taken by him for typing 7 word = 35 seconds

The time taken by him for typing 12 word = 60 seconds

Since, the speed of Casey is constant,

Which is, 1/5 word per seconds.

Thus, the pace per word = 5 second/ word ( Pace = 1/ speed)

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14

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