Which expression is equivalent to the one below?
4·33+9+3+6
W/3 +
4. 42 x 3 +9 x 3 + 6
B. (4 · 4)2 +9= 3 - 6
C. 4 · (33+9) + 3 + 6
D. (22 x 33) + + 6

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?