If a person walks 1 4/5 miles in 1/5 of an hour how many are they running per hour

They are running 7 1\5 miles per hour.

Step-by-step explanation:

You first turn the mixed number into a improper fraction which is 9/5. Then if 9\5 miles is equal to 1/5 of an hour you need to add 4 to 1/5 to get 5/5 which equals one hour. Then you multiply 4 to 9/5 to get your answer of 36/5, then just turn the improper fraction to a mixed number of 7 1\5 miles per hour.

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.