Can someone pls explain this to me

30, 90

Step-by-step explanation:

To find the unit rate divide:

50 ÷ 20 = 2.5

The unit rate is 1:2.5, which means for every minute, Jill can answer two and a half math problems. We can use this to find the other proportions.

12 × 2.5 = 30

36 × 2.5 = 90

This means the chart should look like this:

20 : 50

12 : 30

36 : 90

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation: