Answer:
12. Y=8 is the answer I have the explain
13. X=-1 is the answer I have the explain
Step-by-step explanation: hope this help
Answer:
Option A is correct.
Step-by-step explanation:
No of Balls in Basketball = 2
No of Balls in Dodge ball = 18
No of Balls in Soccer ball = 8
No of Balls in Tennis ball = 14

Ratio of Soccer balls to Tennis balls = 4 : 7
⇒ For every 4 Soccer ball, there are 7 Tennis ball.

Ratio of Basket ball to Dodge Ball = 1 : 9
⇒ For every 1 Basket ball, there are 9 Dodge balls.
Therefore, Option A is correct.
Answer:

Step-by-step explanation:
The pressure exerted by an object is given by:

where
F is the magnitude of the force
A is the area of the surface perpendicular to the force
In this problem, the force is the weight of the books + the shelf, which is given by

where
m = 262 kg is the total mass
is the acceleration of gravity
Substituting,

The area of the four legs is:

Therefore, the pressure exerted on them is:

Answer:
b=35 because 4+29=35 and that my statement for this answer so glad with the rest
Answer:
if there is an overabundance of predators then the predators might get competitive between themselves since most of the prey would be gone.
Step-by-step explanation: