4(3x+2)<5(3x-2) can someone please help me with this? i dont remember how to properly solve problems like this. please show your work

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?