Okay so 1250x0.15=187.5
1250+187.5=1437.5
1437.5 is your final answer
Answer:
i believe the answer is B, im not 100% though
Step-by-step explanation:

these words are too meet the 20 character minimum
<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>
The constant potion contains no variables ( no 'x')
So its 16