Answer:
X-----Independent Variable
Y-----Dependent Variable
Dependent Variable-----A variable whose value determines the value of the output
Independent Variable-----A variable whose value determines the value of the input
Input-----The value substituted into an expression or function
Output----The value that results from the substitution of a given input into an expression or function
Answer:
The first option (5.7km)
Step-by-step explanation:
Since we have a right angle triangle and we know two of its sides we can easily find out the thirds side (the value of d) by using the Pathagoras Theorem. In our case 7 and d are our legs and the hypotenuse is equal to 9, so...
(Based on the Pathagoras Theorem)



d ≈ 5.7km
There for aproximate distance across the lake is equal to 5.7km
Answer:
The factors for 5 are going to be 1 and 5 or their negative counterparts, since no other whole number within the range of 5 can be multiplied to get 5.
Make sense?
The answer is D. when an exponent on the outside you multiply the exponents