Answer:

Step-by-step explanation:
Let
x -----> the number of hours
y ----> the total cost to rent a bike in dollars
we know that
The equation of the line in slope intercept form is equal to

where
m is the slope or the unit rate of the linear equation
b is the y-intercept or the initial value
In this problem we have
The unit rate or slope is equal to

The y-intercept (value of y when the value of x is equal to zero) is equal to
----> (fee charge)
substitute the values

Elga's age is 50, and Alvin's age is 56. So, the sum of their ages is 106.
Answer:

Step-by-step explanation:

Apply sum of cubes formula: 


You do 65+90=155
then 180-155=25 to get the angle next to w
w=155