Please help. I don’t understand how to answer this lol

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

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

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.