I am stuck on the steps of getting the answer?!

3.68(1-4n)=-47.84

Write the pair of fractions as a pair of fractions with a common denominator

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 !

Find two consexutive odd integers such that the sum of their square is 650