Answer:
3
22
0
Step-by-step explanation:
I'm pretty sure it is the answer but if it isn't then sorry
Answer:
x is 4
Step-by-step explanation:
21x+6 = 90
21x=84
x=4
Answer:

Step-by-step explanation:
The penguin swam around half of the perimeter, or circumference, of the pool. The first step is to calculate that. You can find the circumference of a circle by multiplying the diameter by pi. Therefore, the circumference of this island is 20pi. Half of that is
meters. Hope this helps!
Answer:
b. false i think
Step-by-step explanation: