Help for geometry asap

Given:

Four lines are marked proportion, the length of TW can be determined by

Value of a:

Let us set the proportion for the given lines.

Thus, we have;

Thus, the value of a is 5.6

Value of b:

Let us set the proportion for the given lines.

Thus, we have;

Thus, the value of b is 5.

Length of TW:

The length of TW is given by

Thus, the length of TW is 13.6

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step-by-step explanation:

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.