some building codes require that, for indoor stairways, the tread depth must be at least 999 inches and the riser height must be at least 555 inches. according to the riser-tread formula, which of the following inequalities represents the set of all possible values for the riser height that meets this code requirement?

if this is really you s much. i only have 3 points left and i have 2 questions to ask

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

5+2x=a

asdasdsaadsaddsasds

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110