3. 9a+9b
4. 3n+21
5. 30+2q
6. ab+8a
Answer:
x=5
Step-by-step explanation:
x2=10
x=10/2
x=5
B.
as a, none is longer than 11 inches
b, 2 are longer than 11 inches
c, 3 have 9 inches (which is the shortest)
s, one has 9 inches
Step-by-step explanation:
m arc AD = (2×108) - 142 = 216-142= 74°
m<A = 180-108= 72°
