After an oil spill, the ratio of contaminated water samples to clean
water samples in the ocean is 7:2. Jai
found 140 clean samples. How many
fewer samples were clean than were
contaminated?

A.70
B.140
C.350
D.490

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation:

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5

i'm not really sure how to answer that

step-by-step explanation: