<span>let x be the interval, then:
186 = 50 + 3 + (3+x) + (3+2x) + (3+3x) + (3+4x) + (3+5x) + (3+6x) + (3+7x)
186 = 74 + 28x
x = 4
Eldest son age = 3+7x = 3+28 = 31.</span>
Answer:
The third option
Step-by-step explanation:
This is because you multiply the variable cost (9), by the amount they make, which is x.
Answer:idk
Step-by-step explanation:
Answer:
5 seconds
Step-by-step explanation:
hope it helps
correct me if i'm wrong
Where’s point P at though
