5. B
40% can be converted to 0.4 so it is basically 4/10 of $270.
Remember of means to multiply so...
4/10 x $270 = $108
6. B
25% is a 1/4
1/4 of the students went. There were forty students. 40*4= 160
7. C
43/50 can be converted to make it easier so multiply the fraction by 2.
86/100 = 0.86
8.
a. 2/3
b. 67% rounded
c. 8 sesame bagels and 12 plain bagels.
