Can someone pretty me solve #1? i will love you forever

X = number of bags needed

The equation that will be set up is

10,000/20 = 140,000/x

cross multiplying gives

10,000x = 20*140,000
10,000x = 2,800,000
now divide both sides by 10,000 to fully isolate x

10,000x = 2,800,000
10,000x/10,000 = 2,800,000/10,000
x = 280

So you'll need 280 bags

Your answer will be