Penny reads 13 pages in 1/3 hour. What is the unit rate for pages per hour? For hours per page?

(6.03) what is the constant term in the expression 6x3y + 7x2 + 5x + 4? (input a numeric value only.) numerical answers expected! me pls! fast pls

Hi my sisters and brothers can tell me the answer because i don’t understand the question

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?