Use the interactive graph to plot each set of points.

Which sets represent proportional relationships? (Check all that apply)

O (3,1),(6,2),(9,3)
O (2,4),(4,6),(7,9)
O (1,5,3),(3,6),(4,8)
O (3,1),(4,3),(8,7)
PLZ HELP IM DUMB

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?