Well first do 36 divided by 4, which is 9, then square root 9 to make it 3, so your answer should be 3
We need the drop down options..
equation : c=£1.25 for example to find out 3 cans : 3c= £1.25x3
The answer is 2,100. since there are 3 feet in 1 yard, you would multiple 700 by 3.
The segment marked 20 is the geometric mean of the two pieces into which it splits the hypotenuse. You get the proportion

Solving,

To find b, use the fact that b is the geometric mean of the whole hypotenuse, 21 + a, and the part that is attached to it, a.

A little arithmetic shows that

.