Answer:
• for x = 2a√t, make t the subject:

• then find y:

I hope this helps you
x.(x+4)=60
60=6.10
x=6 x+4=6+4=10
Answer:
528 birds
Step-by-step explanation:
100%-15%= 85% = .85
1400 (.85)^6
= 528

Except for 2 and 5, all prime numbers end in the digit 1, 3, 7 or 9.