Divide the total cost by 4:
272 / 4 = 68
It cost $68 for 1 tire
You should really edit that to were there r diagrams
2 sibblings is 34%
there are 50 sibblings total so
34 percent of 50=answer
'of' can be translated as multiply
34%=34/100=0.34
0.34 times 50=17
there were 17 perople weith 2 sibblings