Not sure if there're any answer choices of some sort,
but if the angle a and angle b are supplementary, that means when you add their measures together they must equal 180.
Two sevenths over two fifths = five over seven mile per hour
The unit rate is 5 over 7 miles per hour
<em><u>Solution:</u></em>
Given that, Suzanna walked two over seven of a mile in two over five of an hour
We have to find the unit rate in miles per hour
Unit rate means number of miles covered in 1 hour
From given information,
Two over seven of a mile in two over five of an hour
Which means,


To find for number of miles covered in 1 hour, divide the 

Two sevenths over two fifths = five over seven mile per hour
Thus unit rate is 5 over 7 miles per hour
Answer:
7/9 or ~77.7778% or 0.777778
Step-by-step explanation:
First you need to find the total amount or marbles.
Next, find the sum of <em>just</em><em> </em>the<em> </em>blue<em> </em>and red marbles.
Now, find the probability by dividing or simplifying the number of blue and red by the total.
- 14/18= <u>7/9</u> OR <u>~</u><u>0</u><u>.</u><u>7</u><u>7</u><u>7</u><u>7</u><u>7</u><u>8</u>
Answer:

Step-by-step explanation:
b. m∠B = 60° Because it’s an equilateral triangle
Answer: 9
Step-by-step explanation: 4.5=.5xZ. 4.5/.5=9=z