Consider the product -11 ( 7 6/7 ) Multiply the integer and mixed number by multiplying fractions. What is the product?

(Im not sure if I need to multiply or something please help)

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

Factor this polynomial completely x^2-64

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.