A fish is swimming at a constant rate toward the ocean floor. the equation y=-7x-3 can be used to represent this situation where y is the depth of the fish in meters below sea lever and x is the number of seconds the fish has been swimming

if x decreases by 4 then y increases by 10

step-by-step explanation:

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.