Fred earns $300/wk plus 4% commission on total sales. If he wants to make $1,600 this week, what is the minimum amount of sales in dollars that Fred must make? Define a variable, write an inequality, and solve.

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?