simplify, and write using only positive exponents. variables are non-zero (x^-4)^2(x^-2y^3)^2/(x^-2y^-3)^2

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Which of the following statement about pascal's triangle are true?

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?