Use decimals 1/3= 0.33 1/2=0.5 . 2/2= whole hour=1 multiply 1/3 times 2 and he would mow 0.66=2/6 of his yard in an hour.
25÷100=0.25
0.25×680=170 is the answer
I think u have to do 120÷20=60
then 60×15=900
so he sold 900 flowers I'm not sure tho
Arguably, all of them are at least somewhat biased, but the most biased would be <span>surveying people 15 to 20 years old leaving a concert </span> because being at a concert would be highly correlated with liking the type of music played at that concert.