In a bicycle race Daniel covered 250m in 60s and Yao covered 300m in the same time intervals. what is the ratio of Yao's distance to Daniel's distance in a simplest form

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

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2