Ineed . i don’t understand this question .

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

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0