30) Luke has drawn a model figure as shown below to represent a garden he wishes to build. If he is planning on using a scale factor of 2 cm: 5 ft, how long does the fence need to be?

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  45 ft

Step-by-step explanation:

The fence is shown as 18 cm, which is 9 times 2 cm. If 2 cm represents 5 ft, then the actual fence will be 9 times 5 ft = 45 ft.

0 to π/2 radians.

A is the correct option.

Step-by-step explanation:

An arc on a circle measures 85°.

We know that central angle of a circle and the measure of the arc of the circle is equal.

Hence, the central angle should be also  85°

1 degree = 0.0174533 radians

85°= 1.48353 radians

85°= 1.48353 radians lies in the first quadrant. And in the first quadrant the range of the angle is 0 to π/2 radians.

Hence,  the range is 0 to π/2 radians.

A is the correct option.