Multiply the numbers
2(2/3)
2/1(2/3)= 4/3 = 1 1/3
We can see that for every 1 hour he increases 10 miles in his distance, so we can say it's constant, he started at 0 and increased 10 miles per hour.
Alternative C.
The average american eats 147 pounds of french fries in 18 years
0i think the answer is -3+2