David is twice as old as Abby. If a represents Abby’s age, which expression represents David's age? A) 3 + a
B) 2 + a
C) 2a
D) 3a

c 2a

Step-by-step explanation:

twice as old means your going to be multiplying

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}