Answer:
Y = 300 + 2X
Y( in dollars)
It is a functional relationship because a change in the value of X results in a corresponding change in the value of Y. And does not involve any uncertainty.
Step-by-step explanation:
Given:
Annual fixed due = $300
Variable cost = $2 per visit
X = number of visits in a year
Y = total yearly cost.
Y = annual cost + variable cost
Y = $300 + $2×X
Y = 300 + 2X
Y( in dollars)
It is a functional relationship because a change in the value of X results in a corresponding change in the value of Y. And does not involve any uncertainty.
Step-by-step explanation:
1 Expand by distributing terms.
rx+r×2
2 Regroup terms.
rx+2r
1 yard (3/3) is equal to 3 feet, then 10/3 is equals to 10 feet
After the second, it will be 50, after the third it will be 20, and after the fourth it will be 8. The answer is C
Hope this helps!

1) first do the integer part
2) then do the exponent part

= ???
3) Once you do the first two steps... adjust your answer to scientific notation...