One-eight of the sum of a number and three. the algebraic expression for the given quantity is

let x=number

(x+3)/8

Step-by-step explanation:

(1/8)*(x+3)

(x+3)/8

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2