On a farm, there are a total of 50 cows and chickens. These animals have a total of 124 legs in all. How many more chickens than cows are there?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent