Choose all the fractions that are in simplest form. 4/26 8/21 6/19 9/10 10/22

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?