4) find the maximum value of the function x2 +9x -3 f(x) =- 4) (a) 2/3 (b) 1 (c) 7.75 (d) 16 (e) none of the above

Which of the following is the shape of a cross section of the figure shown below

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?

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?