WILL GIVE BRAINLIEST! (Please hurry) Which algebraic expression has like terms?

A. 9n3 - 2n+ 3 - 4n2

B. 7n3 + 3n - 3 - 6n2

C. 7n3 + 4n - 3n3 - 5n2

D. 6n3 - 4n4 + 6n - 5n2

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

Arecipe calls for 32 fluid ounces of heavy cream.how many 1 pint containers of heavy cream are needed to make the recipe?

What percent of 18 is 24? and plz explain thx.