699 is closet because as you subtract every number from 750, the smallest answer given is the closest to the number you started with.
Well each angle in a rectangle is 90°, so if x is an angle, it's 90°
I hope that helps!
The answer is probably the first or second one. I made it easier for you
Answer:
Step-by-step explanation:
The submarine is underwater for 6 seconds. The submarine hits the water after 1 second and comes back up at the 7th second.
