I can help with the first attatchment. i cant quite see all of the problems, so I'll just tell you the easiest way to find the answers. also, I'll use f as a example.
Step-by-step explanation:
1.) the ratio 8:10 is basically saying "I have eight of these out of 10"
therefore,
the fraction version is the exact same thing. 8/10
(make sure to simplify if the problem asks for you to simplify)
2.) for percent, think if it like this;
8:10 is saying "eight out of 10"
and a percent is ___ out of 100
so.. to turn 8:10 to a percent, multiply the 10 by 10, that way, you will get 100. and then multiply the 8 by 10 as well. 8×10=80. so, the new way to write it is 80:100
now, 80:100 is saying "eighty out of one hundred"
just like how a % is saying "___ out of 100"
so, 8:10 = 80:10 = 80%
3.) for decimal version, think if it this way;
8:10 is just saying "eight out of 10" and the way to write "eight out of 10" as a fraction is 8/10.
and the proper way to say that fraction, 8/10 is "eight tenths"
and you write "eight tenths" as .8 in decimal form
so, 8:10 is .8 in decimal form
