The table shows the distribution of eye color and hair color for the 60 students in a chorus. What percentage of all the students have both green eyes and red hair?

How to solve a simultaneous equation involved with fractions?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?