7x + (9x + 8) = (7x + 9x) + 8 is what property

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 !

The area of a circle is equal to 1 dm². find the radius of the circle.

Fiona has to plot a histogram of the given data