What is 37593 rounded to the nearest ten-thousand

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

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.

Aof 12 , we to a of 4 to on a .of 4 be ?