Answer:

Step-by-step explanation:
we know that
30 and one-third miles is equal to

one-third of an hour is equal to

Applying proportion

Convert to mixed number

Just choose x = 0,1,2,3 and find y for each x, for each of the tables.
The domain of the function f(x) is where the area under the square root (aka the radicand) is positive or zero. We have to write that the radicand is greater than or equal to zero, so

.
C
Step-by-step explanation:
(-3d × 4s) + (2r × 4s) + (3d × t) - (2r × t)
thats how far my knowledge can go...lol