PLS PLS PLS PLS HELP! Brainliest! Due in 15 mins! Please!

f(1)=−6
f(2)=−4
f(n)=f(n−2)+f(n−1)
f(3)=?

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?