Janie is walking in a walk-a-thon to earn money for charity. she walks at a constant rate and for every hour that she walks she makes money. she models her earnings by a linear equation since she is walking at a constant rate. the x-axis shows the amount of time she walks in hours and the y-axis shows the amount of money she earns in tens of dollars. how much will she earn if she walks for four hours? a) $4 b) $8 c) $40 d) $80

D)$80

Step-by-step explanation:

The slope of the graph is 2 units. So for every hour she walks she earns $20. The graph passes through the point (4,8) meaning if she walks for four hours she will earn $80 for charity sorry to say it but im pretty mad

off because of the answer sorry I mean the wrong answer on the bottom so i think everyone deserve to have the right one.

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option