Answer:
A of the shaded figure is 90cm
let hourly rate = r
then over 30 rate would be 1.4r
30r + 5(1.4r) = 436.60
30r + 7r = 436.60
37r = 436.60
r = 436.60/37 = 11.80
his hourly rate is $11.80
15x^2+21x+6 that’s the answer
Because, often times, water pollutants occur in small amounts. Therefore, it is likely to use small percentages (less than 1%) in comparison to the water and various other pollutants in the same sample.
