Answer:
x=13
Step-by-step explanation:
119-2=117
117÷9=13
9×13+2=119
Answer:
first answer is correct
Step-by-step explanation:
Hello, we want to write 2 + 4 + 6 + ... + 20
for n = 1, 2n = 2*1 =2
for n = 2, 2n = 2*2=4
for n = 3, 2n=2*3=6
etc
so

thanks
Answer:
Step-by-step explanation:in a regular pentagon all angles are equal that means one of the triangles angle is 180-108=72
(a,1)(a,2)(a,3)(a,4)(b,1)(b,2)(b,3)(b,4)