Subtract. Write your answer as a fraction in simplest form. -1/2 - (-5/9) =?

Please do this and make sure it is correct, this is 7th grade math please help

Which of the functions graphed below has a removable discontinuity?

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

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?