What is 15% of $135.80

20.37

Step-by-step explanation:

A percent in other words, is one part for every hundred. Mathematically this means 1%=1/100=0.01 and 15%=0.15.

Because of this 15% of 135.8 can be rewritten as 0.15×135.8 which evaluates to 20.37

i hope this is what you were looking for.

see attached graph

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional