Answer:
Correct option: first one
Step-by-step explanation:
The graph has 3 different parts:
Cost = 15 when the Gigabytes used is lesser than or equal 2,
Cost from 20 to 40 when the Gigabytes used is greater than 2 and lesser than or equal 6.
An increase of 4 gigabytes caused an increase of 20 in the cost, so the slope is 20/4 = 5, and the y-intercept is:
20 = 5*2 + b -> b = 10
Cost = 50 when the Gigabytes used is greater than 6.
So the correct option is the first one
D
The equation of a circle centred at the origin is
x² + y² = r² ( where r is the radius )
Here r = 15, thus
x² + y² = 15² , that is
x² + y² = 225 → D
Answer: d-9
Step-by-step explanation: d equals the savings so it says she spent four dollars and then five, so just add those and subtract it from the savings
$0.20
To find the price of the apples we will divide the total price buy the number of apples. 1.8/9
1.8/9=.20
So each apple cost $0.20
Time to check
.20 x 9=1.8
