Robert participates in cup stacking competitions. When he practices he uses cups that measure
7 cm tall. The function below represents a
sequence in terms of the number of rows in the
pyramid, n, and the height of the pyramid, f(n).
f(n) = 7 + 7(n-1)
What is the height of the pyramid when there are
5,6, & 7 rows of cups,(n)?
A. 49 cm, 56 cm, 63 cm
B. 35 cm, 42 cm, 49 cm
C. 7 cm, 14 cm, 21 cm
D. 5 cm, 6 cm, 7 cm

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

52 \43 i don't know this i tried

$320 to $405

step by step explanation:

in one day he earns between $64 and $81

therefore if he works for 5 days, he will earn between 64 x 5 to 81 x 5

= $320 to $405