If ton of pebbles covers of a garden, how many tons of pebbles are required to cover the entire garden?

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

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Need solving this 2nd limit problem.