It will take 3 men 20 days to complete the job.
Answer:

Step-by-step explanation:
The formula for the total accrued amount is
A = P(1 + rt)
Data:
P = $500
r = 6.5 % = 0.065
t = 30 mo
Calculations:
(a) Convert months to years
t = 30 mo × (1 yr/12 mo) = 2.5 yr
(b) Calculate the accrued amount
A = 500(1 + 0.065 × 2.5)
= 500(1 + 0.1625)
= 500 × 1.1625
= 581.25

(c) Calculate the accumulated interest

According to the transformation, the image of (x,y) is (x-5, y+3). Therefore, plug in the coordinates of A, or x=2, y=-1 into (x-5, y+3), and the image of A is (2-5, -1+3)=(-3, 2).
Answer:
For this equation to be true, a must = 13 and b must = 10 + 2i.
Step-by-step explanation:
First combine the numerators: 3 + 5 + 2i + 2, or 10 + 2i.
Next, multiply the denominators: 4 + 9 = 13
Then rewrite the original equation as:
10 + 2i a
---------- * ---- = 1
13 b
For this equation to be true, a must = 13 and b must = 10 + 2i.