What’s the value of 2a-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 !

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?