Which expression is equivalent to x^4-y^4?

What is the solution of log2  (3x  -  7)  =  3? 4 5

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !