How many days are between march the 15th and august the 15th?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?