Plz Help me with this question it is about angels

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Which best explains why this triangle is or is not a right triangle ?

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?