The graph represents the amount of time in hours it takes a ship to travel various distances in miles.

Write an equation that relates the time, t, it takes to travel a given distance, d.

DO NOT INCLUDE ANY SPACES IN YOUR EQUATION ANSWER.

(a)  

Evaluate the expression if x is 1 and z is 3.

$$7x^2-z$$

(a)  

Evaluate the expression if x is 1 and y is 2.

$$\left(x+4\right)^3-y$$

(a)  

Evaluate the expression if x is 1 and y is 2.

$$y\left(x+3^3\right)$$

(a)  

Evaluate the expression if y is 2 and z is 3.

$$\left(7-y+z\right)^2$$

(a)  

Evaluate the expression if x is 1.

$$0.241x+x^3$$

(a)  

Solve for x:

$$2^x=8$$

(a)  

Solve for x:

$$x^2=100$$

(a)