Answer:
3x+12
Step-by-step explanation:
Triple is 3 times a number which we will call “x” and sonce it is the sum, it is addition :)
A's average speed is 100. I did this same thing and passed my grade.
D.
Add the pic and I’ll be able to answer it
1.5 lbs b/c 2 block equal 3 vs 3 blocks equal 3