Describe and correct the error in rewriting the expression:

wrong: 6(x + 7) = 6x + 13

provide a description and correction, !

Plz help plz give me the answer

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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 !