X+15=8 Subtract 15 from both sides
x=8-15
x=-7
Answer:
Yes
Step-by-step explanation:
Longest side < sum of two other sides
Is a condition to form a triangle
12 < 7+9
12 < 16
So, yes
Answer:
Ariah needs 2748 kilograms of air to fill the balloon.
Step-by-step explanation:
I got 24 there is 24 red rocks and 18 black rocks.What I did was divide 42 by 2 and got 21 then added 3 and got 24. So hope this helps :D