Answer:
The answer is C.
Step-by-step explanation:
4 x 12 is how much money per worker per hour. 20 x 160 is how much the cost for the concrete. Adding them gets you the total cost.
Hope this helped!
<h3>
Answer: 5% growth (fourth choice)</h3>
the base of the exponent 1.05 is in the form 1+r
1+r = 1.05 which solves to r = 0.05 when we subtract 1 from both sides
Since r is positive, it represents growth.
0.05 = 5/100 = 5%
The correct answer is b) y=3x-2
