Solution :
Give that a shark can chase prey about 30 miles per hour.
1 hour = 60 minute
by using unitary method, we will convert miles per hour into miles per minute
in 60 minutes the shark can chase the prey 30 miles
In 1 minute the shark can chase 
Hence the shark can chase the prey about 0.5 miles per minute.
First, eliminate the lowest grade (76). Now, find the average/mean of the remaining 4 test grades. To do so, add up all the test grades, then divide them by the total number of test grades:
80+84+91+95=350
350/4=87.5
Hope this helps!!
I believe you want to solve for a so the first thing is to isolate it. Multiply both sides by 1/3 to leave a alone on the left. you have to do the same to the other side so you get 5/3 x1/3 which equals 5/9
2 : 9
multiply each by 12 because 24 ÷ 2 = 12
so
24 : 108
but when simplified is 2 : 9
It's kinda blurry and do u want me to break My neck it's Sideways :)