Daniel had 20 minutes to do a three problem quiz he spent 8 3/4 minutes on A and 5 1/2 on question B . How Mich time did he had left for question C

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Based on the spreadsheet below, which of the following is a true statement?

1/4x+5=3/4. i can't get access to the answer to this question! and, my request on "contact us" will not go