C) 6 I
3)
4)
12x + 12
13x + 5
A) -
C) -10
A) 6
C) 7
B) 8
D) 9
5)
6)

x=7

Step-by-step explanation:

Alternate interior angles so they are congruent. So, 13x+5=12x+12. Subtract 12x and get x+5=12. Subtract 5 and you get x=7

6 spoons of sugar for every 21 cups of flour

step-by-step explanation:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.