Clarence brought 5 rolls of color film and 4 rolls of black - and - white film for his camera for a total of $24.00. the black - and - white cost $1.50 per roll more than the color film. how much does one roll of the black - and -white film cost?

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Given abc find the values of x and y. in your final answer, include all of your calculations.