Im not sure but i think it is 15 - x
Trapezoid because it doesn't have to parareles sides like the other
X greater than/equal to 600 and X less than/equal to 2400
F(2) = 20(1.25)^x
f(2) = 20(1.25)^2 - plug in 2 to x
f(2) = 20(1.5625) - calculate 1.25^2
f(2) = 31.25 - simplify
Answer:
Arithmetic Sequence
Step-by-step explanation:
Arithmetic Sequence